Fundies.
English

Segment disclosures

Company overview

AT&T INC.

Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.

Revenue · Reported segment facts

137 dimension combinations 784 retained observations 10 reported periods Partial retained history

Counts describe retained dimensioned rows only. Periods and members can change across reports, and this view does not infer missing values or expected segment totals.

Operating Segments · Business Service · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:BusinessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-3118064000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-304417000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3013688000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Business Service · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:BusinessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Business Service · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:BusinessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Business Service · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:BusinessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Business Service · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:BusinessServiceMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-317333000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-01-01 – 2024-12-316969000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence

Operating Segments · Business Service · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:BusinessServiceMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-318645000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-01-01 – 2024-12-317391000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence

Operating Segments · Business Service · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:BusinessServiceMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence

Operating Segments · Fiber And Advanced Connectivity Service · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:FiberAndAdvancedConnectivityServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-311780000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence

Operating Segments · Fiber And Advanced Connectivity Service · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:FiberAndAdvancedConnectivityServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-312066000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence

Operating Segments · Fiber And Advanced Connectivity Service · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:FiberAndAdvancedConnectivityServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence

Operating Segments · Fiber And Advanced Connectivity Service · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:FiberAndAdvancedConnectivityServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Fiber And Advanced Connectivity Service · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:FiberAndAdvancedConnectivityServiceMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-07-01 – 2025-09-301853000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-305426000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-301793000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-303573000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-07-01 – 2024-09-301748000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-305183000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-301732000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-303435000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Fiber And Advanced Connectivity Service · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:FiberAndAdvancedConnectivityServiceMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-07-01 – 2025-09-302198000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-306400000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-302136000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-304202000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-07-01 – 2024-09-301882000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-305414000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-301796000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-303532000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Fiber And Advanced Connectivity Service · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:FiberAndAdvancedConnectivityServiceMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · IP Broadband · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:IPBroadbandMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · IP Broadband · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:IPBroadbandMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-31918000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-3111212000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-302838000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-308301000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · IP Broadband · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:IPBroadbandMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · IP Broadband · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:IPBroadbandMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · IP Broadband · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:IPBroadbandMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · IP Broadband · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:IPBroadbandMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-313542000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-30872000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-302682000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-30892000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-301810000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-313821000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-30956000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-302887000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-30945000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-301931000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · IP Broadband · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:IPBroadbandMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Legacy Voice And Data · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:LegacyVoiceAndDataMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-312475000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Legacy Voice And Data · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:LegacyVoiceAndDataMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-31286000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-311265000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-30307000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-30972000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Legacy Voice And Data · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:LegacyVoiceAndDataMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Legacy Voice And Data · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:LegacyVoiceAndDataMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Legacy Voice And Data · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:LegacyVoiceAndDataMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-319170000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-302208000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-307032000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-302349000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-304824000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-3111095000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-302669000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-308505000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-302839000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-305836000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Legacy Voice And Data · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:LegacyVoiceAndDataMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-311013000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-30243000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-30794000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-30265000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-30551000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-311265000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-30307000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-30972000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-30323000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-30665000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Legacy Voice And Data · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:LegacyVoiceAndDataMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Other Service · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:OtherServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Other Service · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:OtherServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-31252000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-311101000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-30271000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-30840000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Other Service · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:OtherServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Other Service · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:OtherServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Other Service · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:OtherServiceMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Other Service · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:OtherServiceMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-31983000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-30242000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-30742000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-30248000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-30500000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-311101000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-30271000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-30840000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-30283000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-30569000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Other Service · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:OtherServiceMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Wireless Service · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Wireless Service · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Wireless Service · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-3116651000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-3165373000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-3016539000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3048810000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Wireless Service · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-312715000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-30696000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-301973000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-30662000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-301277000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-31615000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-312668000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-30645000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-302034000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-30699000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-301389000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Wireless Service · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Wireless Service · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Wireless Service · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3167384000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-3016926000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3050430000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-3016853000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-3033504000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-3165373000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-3016539000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3048810000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-3016277000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-3032271000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Other Capitalized Property Plant And Equipment · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-31755000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence

Operating Segments · Other Capitalized Property Plant And Equipment · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-310 USD2025-02-13 · 03:23:52.000ZOpen filing evidence

Operating Segments · Other Capitalized Property Plant And Equipment · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-3119882000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence

Operating Segments · Other Capitalized Property Plant And Equipment · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-311664000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-01-01 – 2024-12-311564000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence

Operating Segments · Other Capitalized Property Plant And Equipment · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-31728000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-01-01 – 2024-12-31755000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence

Operating Segments · Other Capitalized Property Plant And Equipment · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-01-01 – 2024-12-310 USD2026-02-10 · 03:22:16.000ZOpen filing evidence

Operating Segments · Other Capitalized Property Plant And Equipment · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3122098000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-01-01 – 2024-12-3119882000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence

Operating Segments · Product · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-31213000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-07-01 – 2024-09-30189000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-30586000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Product · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Product · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-314919000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-07-01 – 2024-09-304513000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3013316000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Product · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-07-01 – 2025-09-30399000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-301147000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-30392000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-30748000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-31356000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-07-01 – 2024-09-30377000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-301154000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-30404000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-30777000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Product · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-07-01 – 2025-09-30187000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-30571000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-30171000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-30384000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-07-01 – 2024-09-30189000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-30586000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-30184000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-30397000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Product · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-07-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-07-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Product · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-07-01 – 2025-09-304787000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3014698000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-304992000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-309911000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-07-01 – 2024-09-304513000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3013316000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-304203000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-308803000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Service · Communications · Business Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-314255000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-3118064000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-304417000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3013688000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Service · Communications · Consumer Wireline

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-313522000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-3113578000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-303416000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3010113000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Service · Communications · Mobility

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-3116651000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-3165373000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-3016539000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3048810000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Service · Latin America Business Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-312715000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-30696000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-301973000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-30662000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-301277000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-31615000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-312668000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-30645000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-302034000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-30699000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-301389000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Service · Business Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3116503000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-304061000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3012458000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-304142000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-308397000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-3118064000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-304417000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3013688000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-304571000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-309271000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Service · Consumer Wireline · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3114183000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-303555000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3010618000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-303541000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-307063000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-3113578000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-303416000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3010113000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-303347000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-306697000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Service · Mobility · Communications

Consolidation Items · Product Or Service · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3167384000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-3016926000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3050430000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-3016853000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-3033504000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-3165373000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-3016539000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3048810000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-3016277000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-3032271000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Communications

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-31120896000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-3029516000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3088775000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-3029699000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-3059259000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-3129560000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-31117652000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-3029074000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3086513000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-3028582000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-3057439000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Communications · Business Wireline

Consolidation Items · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-314468000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-3118819000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-304606000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3014274000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Communications · Consumer Wireline

Consolidation Items · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-313522000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-3113578000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-303416000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3010113000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Communications · Mobility

Consolidation Items · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:MobilityMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-3121570000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-3185255000000 USD2025-02-13 · 03:23:52.000ZOpen filing evidence
2024-07-01 – 2024-09-3021052000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence
2024-01-01 – 2024-09-3062126000000 USD2024-10-30 · 00:16:05.000ZOpen filing evidence

Operating Segments · Latin America Business Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaBusinessSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-314379000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-301095000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-303120000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-301054000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-302025000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-03-31971000000 USD2025-04-30 · 01:04:50.000ZOpen filing evidence
2024-01-01 – 2024-12-314232000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-301022000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-303188000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-301103000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-302166000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Business Wireline · Communications

Consolidation Items · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3117231000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-304248000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3013029000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-304313000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-308781000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-3118819000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-304606000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3014274000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-304755000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-309668000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Consumer Wireline · Communications

Consolidation Items · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=t:ConsumerWirelineMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3114183000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-303555000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3010618000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-303541000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-307063000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-3113578000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-303416000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3010113000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-303347000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-306697000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Operating Segments · Mobility · Communications

Consolidation Items · Subsegments · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=t:MobilityMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3189482000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-3021713000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-01-01 – 2025-09-3065128000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2025-04-01 – 2025-06-3021845000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2025-01-01 – 2025-06-3043415000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-12-3185255000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-3021052000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-3062126000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-04-01 – 2024-06-3020480000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence
2024-01-01 – 2024-06-3041074000000 USD2025-07-25 · 00:41:26.000ZOpen filing evidence

Advanced Home Internet · Advanced Connectivity Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:AdvancedHomeInternetMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-302926000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-305725000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-312799000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-302299000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-304497000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-312198000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Advanced Home Internet · Latin America Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:AdvancedHomeInternetMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Advanced Home Internet · Legacy Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:AdvancedHomeInternetMember;us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Advanced Home Internet · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:AdvancedHomeInternetMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Business Fiber And Advanced Connectivity Service · Advanced Connectivity Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:BusinessFiberAndAdvancedConnectivityServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301946000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-303828000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-311882000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-301769000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-303524000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-311755000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Business Fiber And Advanced Connectivity Service · Latin America Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:BusinessFiberAndAdvancedConnectivityServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Business Fiber And Advanced Connectivity Service · Legacy Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:BusinessFiberAndAdvancedConnectivityServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Business Fiber And Advanced Connectivity Service · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:BusinessFiberAndAdvancedConnectivityServiceMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Business Service · Communications · Business Wireline · Operating Segments

Product Or Service · Statement Business Segments · Subsegments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=t:BusinessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-304571000000 USD2024-07-26 · 00:07:10.000ZOpen filing evidence
2024-01-01 – 2024-06-309271000000 USD2024-07-26 · 00:07:10.000ZOpen filing evidence

Business Transitional And Other Services · Advanced Connectivity Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:BusinessTransitionalAndOtherServicesMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301042000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-302125000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-311083000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-301249000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-302543000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-311294000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Business Transitional And Other Services · Latin America Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:BusinessTransitionalAndOtherServicesMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Business Transitional And Other Services · Legacy Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:BusinessTransitionalAndOtherServicesMember;us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Business Transitional And Other Services · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:BusinessTransitionalAndOtherServicesMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

IP Broadband · Communications · Business Wireline · Operating Segments

Product Or Service · Statement Business Segments · Subsegments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=t:IPBroadbandMember;us-gaap:StatementBusinessSegmentsAxis=t:CommunicationsMember;us-gaap:SubsegmentsAxis=t:BusinessWirelineMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-06-300 USD2024-07-26 · 00:07:10.000ZOpen filing evidence

Wireless Service · Advanced Connectivity Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3017413000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-3034354000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-3116941000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-3016853000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-3033504000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-3116651000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Wireless Service · Advanced Connectivity Segment · Advanced Connectivity Business

Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;us-gaap:SubsegmentsAxis=t:AdvancedConnectivityBusinessMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-302421000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-304778000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-312357000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-302294000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-304575000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-312281000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Wireless Service · Advanced Connectivity Segment · Advanced Connectivity Consumer

Product Or Service · Statement Business Segments · Subsegments

Source dimensions srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;us-gaap:SubsegmentsAxis=t:AdvancedConnectivityConsumerMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3014992000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-3029576000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-3114584000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-3014559000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-3028929000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-3114370000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Wireless Service · Latin America Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30780000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-301533000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-31753000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-30662000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-301277000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-31615000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Wireless Service · Legacy Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Wireless Service · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Product · Advanced Connectivity Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-305137000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-3010745000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-315608000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-305163000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-3010295000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-315132000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Product · Latin America Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30444000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-30864000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-31420000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-30392000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-30748000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-31356000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Product · Legacy Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Product · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ProductMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Service · Advanced Connectivity Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3023478000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-3046341000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-3122863000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-3022334000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-3044394000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-3122060000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Service · Latin America Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30780000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-301533000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-31753000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-30662000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-301277000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-31615000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Service · Legacy Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301632000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-303400000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-311768000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-302202000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-304570000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-312368000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Service · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3087000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-30181000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-3194000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-3094000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-30189000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-3195000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Service Other · Advanced Connectivity Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceOtherMember;us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30151000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-30309000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-31158000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-30164000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-30326000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-31162000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Service Other · Latin America Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceOtherMember;us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Service Other · Legacy Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceOtherMember;us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301632000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-303400000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-311768000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-302202000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-304570000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-312368000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Service Other · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceOtherMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3087000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-30181000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-3194000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-04-01 – 2025-06-3094000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-30189000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-3195000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Advanced Connectivity Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3029481000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-3086567000000 USD20261021Open filing evidence
2026-04-01 – 2026-06-3028615000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-3057086000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-3128471000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-07-01 – 2025-09-3027503000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-3082192000000 USD20261021Open filing evidence
2025-04-01 – 2025-06-3027497000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-3054689000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-3127192000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Advanced Connectivity Segment · Advanced Home Internet

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=t:AdvancedHomeInternetMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-302975000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-308700000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-302411000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-306908000000 USD20261021Open filing evidence

Advanced Connectivity Segment · Business Fiber And Advanced Connectivity Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=t:BusinessFiberAndAdvancedConnectivityServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-301992000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-305820000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-301832000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-305356000000 USD20261021Open filing evidence

Advanced Connectivity Segment · Business Transitional And Other Services

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=t:BusinessTransitionalAndOtherServicesMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-301023000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-303148000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-301198000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-303741000000 USD20261021Open filing evidence

Advanced Connectivity Segment · Wireless Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=t:WirelessServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3017764000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-3052118000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-3016926000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-3050430000000 USD20261021Open filing evidence

Advanced Connectivity Segment · Wireless Service · Advanced Connectivity Business

Statement Business Segments · Product Or Service · Subsegments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:SubsegmentsAxis=t:AdvancedConnectivityBusinessMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-302481000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-307259000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-302332000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-306907000000 USD20261021Open filing evidence

Advanced Connectivity Segment · Wireless Service · Advanced Connectivity Consumer

Statement Business Segments · Product Or Service · Subsegments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=t:WirelessServiceMember;us-gaap:SubsegmentsAxis=t:AdvancedConnectivityConsumerMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3015283000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-3044859000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-3014594000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-3043523000000 USD20261021Open filing evidence

Advanced Connectivity Segment · Product

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=us-gaap:ProductMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-305579000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-3016324000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-304974000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-3015269000000 USD20261021Open filing evidence

Advanced Connectivity Segment · Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3023902000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-3070243000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-3022529000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-3066923000000 USD20261021Open filing evidence

Advanced Connectivity Segment · Service Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:AdvancedConnectivitySegmentMember;srt:ProductOrServiceAxis=us-gaap:ServiceOtherMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30148000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-30457000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-30162000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-30488000000 USD20261021Open filing evidence

Latin America Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-301240000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-303637000000 USD20261021Open filing evidence
2026-04-01 – 2026-06-301224000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-302397000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-311173000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-07-01 – 2025-09-301095000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-303120000000 USD20261021Open filing evidence
2025-04-01 – 2025-06-301054000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-302025000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-31971000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Latin America Segment · Advanced Home Internet

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember;srt:ProductOrServiceAxis=t:AdvancedHomeInternetMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Latin America Segment · Business Fiber And Advanced Connectivity Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember;srt:ProductOrServiceAxis=t:BusinessFiberAndAdvancedConnectivityServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Latin America Segment · Business Transitional And Other Services

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember;srt:ProductOrServiceAxis=t:BusinessTransitionalAndOtherServicesMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Latin America Segment · Wireless Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember;srt:ProductOrServiceAxis=t:WirelessServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30798000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-302331000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-30696000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-301973000000 USD20261021Open filing evidence

Latin America Segment · Product

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember;srt:ProductOrServiceAxis=us-gaap:ProductMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30442000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-301306000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-30399000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-301147000000 USD20261021Open filing evidence

Latin America Segment · Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30798000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-302331000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-30696000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-301973000000 USD20261021Open filing evidence

Latin America Segment · Service Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LatinAmericaSegmentMember;srt:ProductOrServiceAxis=us-gaap:ServiceOtherMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Legacy Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-301519000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-304919000000 USD20261021Open filing evidence
2026-04-01 – 2026-06-301632000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-303400000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-311768000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-07-01 – 2025-09-302013000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-306583000000 USD20261021Open filing evidence
2025-04-01 – 2025-06-302202000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-304570000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-312368000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence

Legacy Segment · Advanced Home Internet

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember;srt:ProductOrServiceAxis=t:AdvancedHomeInternetMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Legacy Segment · Business Fiber And Advanced Connectivity Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember;srt:ProductOrServiceAxis=t:BusinessFiberAndAdvancedConnectivityServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Legacy Segment · Business Transitional And Other Services

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember;srt:ProductOrServiceAxis=t:BusinessTransitionalAndOtherServicesMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Legacy Segment · Wireless Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember;srt:ProductOrServiceAxis=t:WirelessServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Legacy Segment · Product

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember;srt:ProductOrServiceAxis=us-gaap:ProductMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Legacy Segment · Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-301519000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-304919000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-302013000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-306583000000 USD20261021Open filing evidence

Legacy Segment · Service Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=t:LegacySegmentMember;srt:ProductOrServiceAxis=us-gaap:ServiceOtherMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-301519000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-304919000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-302013000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-306583000000 USD20261021Open filing evidence

Corporate And Other

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3082000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-30263000000 USD20261021Open filing evidence
2026-04-01 – 2026-06-3087000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-06-30181000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2026-01-01 – 2026-03-3194000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2025-01-01 – 2025-12-31373000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2025-07-01 – 2025-09-3098000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-30287000000 USD20261021Open filing evidence
2025-04-01 – 2025-06-3094000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-06-30189000000 USD2026-07-23 · 00:07:05.000ZOpen filing evidence
2025-01-01 – 2025-03-3195000000 USD2026-04-28 · 00:17:53.000ZOpen filing evidence
2024-01-01 – 2024-12-31452000000 USD2026-02-10 · 03:22:16.000ZOpen filing evidence
2024-07-01 – 2024-09-30117000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence
2024-01-01 – 2024-09-30337000000 USD2025-11-01 · 00:12:29.000ZOpen filing evidence

Corporate And Other · Advanced Home Internet

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=t:AdvancedHomeInternetMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Corporate And Other · Business Fiber And Advanced Connectivity Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=t:BusinessFiberAndAdvancedConnectivityServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Corporate And Other · Business Transitional And Other Services

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=t:BusinessTransitionalAndOtherServicesMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Corporate And Other · Wireless Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=t:WirelessServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Corporate And Other · Product

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=us-gaap:ProductMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261021Open filing evidence
2026-01-01 – 2026-09-300 USD20261021Open filing evidence
2025-07-01 – 2025-09-300 USD20261021Open filing evidence
2025-01-01 – 2025-09-300 USD20261021Open filing evidence

Corporate And Other · Service

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3082000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-30263000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-3098000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-30287000000 USD20261021Open filing evidence

Corporate And Other · Service Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=us-gaap:ServiceOtherMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3082000000 USD20261021Open filing evidence
2026-01-01 – 2026-09-30263000000 USD20261021Open filing evidence
2025-07-01 – 2025-09-3098000000 USD20261021Open filing evidence
2025-01-01 – 2025-09-30287000000 USD20261021Open filing evidence