Fundies.
English

Segment disclosures

Company overview

MARRIOTT INTERNATIONAL INC /MD/

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

Revenue · Reported segment facts

106 dimension combinations 758 retained observations 27 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 · Fee Service · APEC

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31102000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31370000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-3085000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30263000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-3081000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-30178000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-3197000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31340000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-3080000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30239000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-3073000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30159000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-3186000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31284000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-3068000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30196000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-3062000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30128000000 USD20240731Open filing evidence
2022-01-01 – 2022-12-31178000000 USD20250211Open filing evidence

Operating Segments · Fee Service · Asia Pacific Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:AsiaPacificSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-31176000000 USD20210218Open filing evidence
2020-01-01 – 2020-03-3131000000 USD20200511Open filing evidence
2019-01-01 – 2019-12-31475000000 USD20210218Open filing evidence

Operating Segments · Fee Service · EMEA Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31127000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31621000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30167000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30445000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30164000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-30278000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-31114000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31575000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30150000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30415000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30150000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30265000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31115000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31516000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-30139000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30371000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-30130000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30232000000 USD20240731Open filing evidence
2022-01-01 – 2022-12-31438000000 USD20250211Open filing evidence

Operating Segments · Fee Service · Europe Middle Eastand Africa Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastandAfricaSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-03-3142000000 USD20200511Open filing evidence

Operating Segments · Fee Service · Greater China

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3168000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31260000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-3063000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30187000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-3064000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-30124000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-3160000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31249000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-3062000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30186000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-3059000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30124000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-3165000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31265000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-3071000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30196000000 USD20241104Open filing evidence
2022-01-01 – 2022-12-31120000000 USD20250211Open filing evidence

Operating Segments · Fee Service · International Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31888000000 USD20230214Open filing evidence
2022-07-01 – 2022-09-30235000000 USD20221103Open filing evidence
2022-01-01 – 2022-09-30610000000 USD20221103Open filing evidence
2022-04-01 – 2022-06-30208000000 USD20220802Open filing evidence
2022-01-01 – 2022-06-30375000000 USD20220802Open filing evidence
2022-01-01 – 2022-03-31167000000 USD20220504Open filing evidence
2021-01-01 – 2021-12-31548000000 USD20230214Open filing evidence
2021-07-01 – 2021-09-30150000000 USD20221103Open filing evidence
2021-01-01 – 2021-09-30360000000 USD20221103Open filing evidence
2021-04-01 – 2021-06-30127000000 USD20220802Open filing evidence
2021-01-01 – 2021-06-30210000000 USD20220802Open filing evidence
2021-01-01 – 2021-03-3183000000 USD20220504Open filing evidence
2020-01-01 – 2020-12-31314000000 USD20230214Open filing evidence
2020-01-01 – 2020-03-3196000000 USD20210510Open filing evidence

Operating Segments · Fee Service · North American Full Service Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-03-31387000000 USD20200511Open filing evidence
2019-01-01 – 2019-12-311264000000 USD20200227Open filing evidence

Operating Segments · Fee Service · North American Limited Service Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanLimitedServiceSegmentMember
PeriodValueUnitFiledEvidence
2019-01-01 – 2019-12-31953000000 USD20200227Open filing evidence

Operating Segments · Fee Service · Other International Segments

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:OtherInternationalSegmentsMember
PeriodValueUnitFiledEvidence
2019-01-01 – 2019-12-31543000000 USD20200227Open filing evidence

Operating Segments · Fee Service · US And Canada Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31752000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-312921000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30721000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-302189000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30779000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-301468000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-31689000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-312875000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30728000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-302170000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30777000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-301442000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31665000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-312734000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-30674000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-302064000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-30734000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-301390000000 USD20240731Open filing evidence
2023-01-01 – 2023-03-31656000000 USD20230502Open filing evidence
2022-01-01 – 2022-12-312426000000 USD20250211Open filing evidence
2022-01-01 – 2022-03-31475000000 USD20230502Open filing evidence
2021-01-01 – 2021-12-311525000000 USD20230214Open filing evidence
2021-04-01 – 2021-06-30360000000 USD20210803Open filing evidence
2021-01-01 – 2021-06-30597000000 USD20210803Open filing evidence
2021-01-01 – 2021-03-31237000000 USD20220504Open filing evidence
2020-01-01 – 2020-12-31806000000 USD20230214Open filing evidence
2020-04-01 – 2020-06-3099000000 USD20210803Open filing evidence
2020-01-01 – 2020-06-30486000000 USD20210803Open filing evidence
2019-01-01 – 2019-12-312217000000 USD20210218Open filing evidence

Operating Segments · Owned Leasedand Other · APEC

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3139000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31162000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-3032000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30110000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-3043000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-3078000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-3135000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31141000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-3030000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-3098000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-3036000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-3068000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-3132000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31135000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-3028000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-3095000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-3037000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-3067000000 USD20240731Open filing evidence
2022-01-01 – 2022-12-3197000000 USD20250211Open filing evidence

Operating Segments · Owned Leasedand Other · Asia Pacific Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:AsiaPacificSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-03-3131000000 USD20200511Open filing evidence
2019-01-01 – 2019-12-31178000000 USD20200227Open filing evidence

Operating Segments · Owned Leasedand Other · EMEA Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31116000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31592000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30161000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30439000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30164000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-30278000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-31114000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31595000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30169000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30444000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30157000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30275000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31118000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31574000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-30155000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30419000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-30151000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30264000000 USD20240731Open filing evidence
2022-01-01 – 2022-12-31481000000 USD20250211Open filing evidence

Operating Segments · Owned Leasedand Other · Europe Middle Eastand Africa Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastandAfricaSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-03-3191000000 USD20200511Open filing evidence

Operating Segments · Owned Leasedand Other · Greater China

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-318000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-3126000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-304000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-3021000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-3010000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-3017000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-317000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-3127000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-305000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-3018000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-306000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-3013000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-317000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-3118000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-306000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-3015000000 USD20241104Open filing evidence
2022-01-01 – 2022-12-3117000000 USD20250211Open filing evidence

Operating Segments · Owned Leasedand Other · International Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-30242000000 USD20230801Open filing evidence
2023-01-01 – 2023-06-30456000000 USD20230801Open filing evidence
2022-01-01 – 2022-12-31801000000 USD20230214Open filing evidence
2022-04-01 – 2022-06-30217000000 USD20230801Open filing evidence
2022-01-01 – 2022-06-30370000000 USD20230801Open filing evidence
2021-01-01 – 2021-12-31467000000 USD20230214Open filing evidence
2021-07-01 – 2021-09-30134000000 USD20211103Open filing evidence
2021-01-01 – 2021-09-30320000000 USD20211103Open filing evidence
2021-04-01 – 2021-06-30120000000 USD20220802Open filing evidence
2021-01-01 – 2021-06-30186000000 USD20220802Open filing evidence
2020-01-01 – 2020-12-31317000000 USD20230214Open filing evidence
2020-07-01 – 2020-09-3063000000 USD20211103Open filing evidence
2020-01-01 – 2020-09-30250000000 USD20211103Open filing evidence

Operating Segments · Owned Leasedand Other · North American Full Service Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-03-31102000000 USD20200511Open filing evidence
2019-01-01 – 2019-12-31581000000 USD20200227Open filing evidence

Operating Segments · Owned Leasedand Other · North American Limited Service Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanLimitedServiceSegmentMember
PeriodValueUnitFiledEvidence
2019-01-01 – 2019-12-31134000000 USD20200227Open filing evidence

Operating Segments · Owned Leasedand Other · Other International Segments

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:OtherInternationalSegmentsMember
PeriodValueUnitFiledEvidence
2019-01-01 – 2019-12-31663000000 USD20200227Open filing evidence

Operating Segments · Owned Leasedand Other · US And Canada Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31140000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31528000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30130000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30390000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30140000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-30260000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-31120000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31437000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-3095000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30314000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30111000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30219000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31108000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31506000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-3094000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30327000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-30116000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30233000000 USD20240731Open filing evidence
2023-01-01 – 2023-03-31117000000 USD20230502Open filing evidence
2022-01-01 – 2022-12-31479000000 USD20250211Open filing evidence
2022-07-01 – 2022-09-30114000000 USD20231102Open filing evidence
2022-01-01 – 2022-09-30330000000 USD20231102Open filing evidence
2022-04-01 – 2022-06-30124000000 USD20230801Open filing evidence
2022-01-01 – 2022-06-30216000000 USD20230801Open filing evidence
2022-01-01 – 2022-03-3192000000 USD20230502Open filing evidence
2021-01-01 – 2021-12-31282000000 USD20230214Open filing evidence
2021-07-01 – 2021-09-3093000000 USD20211103Open filing evidence
2021-01-01 – 2021-09-30185000000 USD20211103Open filing evidence
2021-01-01 – 2021-03-3135000000 USD20220504Open filing evidence
2020-01-01 – 2020-12-31198000000 USD20230214Open filing evidence
2020-07-01 – 2020-09-3036000000 USD20211103Open filing evidence
2020-01-01 – 2020-09-30155000000 USD20211103Open filing evidence
2019-01-01 – 2019-12-31715000000 USD20220215Open filing evidence

Operating Segments · Reimbursements · APEC

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31146000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31541000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30130000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30393000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30132000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-30263000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-31131000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31495000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30120000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30359000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30123000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30239000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31116000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31411000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-30103000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30300000000 USD20241104Open filing evidence
2022-01-01 – 2022-12-31289000000 USD20250211Open filing evidence

Operating Segments · Reimbursements · Asia Pacific Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:AsiaPacificSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-31347000000 USD20210218Open filing evidence
2020-01-01 – 2020-03-31107000000 USD20200511Open filing evidence
2019-01-01 – 2019-12-31536000000 USD20210218Open filing evidence

Operating Segments · Reimbursements · EMEA Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31264000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-311194000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30285000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30898000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30327000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-30613000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-31286000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-311236000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30316000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30916000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30322000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30600000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31278000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-311178000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-30309000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30872000000 USD20241104Open filing evidence
2022-01-01 – 2022-12-311010000000 USD20250211Open filing evidence

Operating Segments · Reimbursements · Europe Middle Eastand Africa Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastandAfricaSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-03-31211000000 USD20200511Open filing evidence

Operating Segments · Reimbursements · Greater China

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3176000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31304000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-3075000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30222000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-3078000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-30147000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-3169000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31306000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-3075000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30226000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-3075000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30151000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-3176000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31317000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-3083000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30234000000 USD20241104Open filing evidence
2022-01-01 – 2022-12-31214000000 USD20250211Open filing evidence

Operating Segments · Reimbursements · International Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-311797000000 USD20230214Open filing evidence
2022-04-01 – 2022-06-30450000000 USD20220802Open filing evidence
2022-01-01 – 2022-06-30805000000 USD20220802Open filing evidence
2021-01-01 – 2021-12-311239000000 USD20230214Open filing evidence
2021-07-01 – 2021-09-30337000000 USD20211103Open filing evidence
2021-01-01 – 2021-09-30854000000 USD20211103Open filing evidence
2021-04-01 – 2021-06-30275000000 USD20220802Open filing evidence
2021-01-01 – 2021-06-30517000000 USD20220802Open filing evidence
2020-01-01 – 2020-12-31966000000 USD20230214Open filing evidence
2020-07-01 – 2020-09-30212000000 USD20211103Open filing evidence
2020-01-01 – 2020-09-30727000000 USD20211103Open filing evidence

Operating Segments · Reimbursements · North American Full Service Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-03-313331000000 USD20200511Open filing evidence
2019-01-01 – 2019-12-3111610000000 USD20200227Open filing evidence

Operating Segments · Reimbursements · North American Limited Service Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanLimitedServiceSegmentMember
PeriodValueUnitFiledEvidence
2019-01-01 – 2019-12-312291000000 USD20200227Open filing evidence

Operating Segments · Reimbursements · Other International Segments

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:OtherInternationalSegmentsMember
PeriodValueUnitFiledEvidence
2019-01-01 – 2019-12-311149000000 USD20200227Open filing evidence

Operating Segments · Reimbursements · US And Canada Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-314063000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-3115900000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-303890000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-3011822000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-304043000000 USD20250805Open filing evidence
2025-01-01 – 2025-06-307932000000 USD20250805Open filing evidence
2025-01-01 – 2025-03-313889000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-3115300000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-303773000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-3011367000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-303877000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-307594000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-313717000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-3114456000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-303565000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-3010722000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-303652000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-307157000000 USD20240731Open filing evidence
2023-01-01 – 2023-03-313505000000 USD20230502Open filing evidence
2022-01-01 – 2022-12-3112848000000 USD20250211Open filing evidence
2022-01-01 – 2022-03-312704000000 USD20230502Open filing evidence
2021-01-01 – 2021-12-318549000000 USD20230214Open filing evidence
2021-07-01 – 2021-09-302450000000 USD20211103Open filing evidence
2021-01-01 – 2021-09-305810000000 USD20211103Open filing evidence
2021-04-01 – 2021-06-301911000000 USD20210803Open filing evidence
2021-01-01 – 2021-06-303360000000 USD20210803Open filing evidence
2020-01-01 – 2020-12-316901000000 USD20230214Open filing evidence
2020-07-01 – 2020-09-301392000000 USD20211103Open filing evidence
2020-01-01 – 2020-09-305686000000 USD20211103Open filing evidence
2020-04-01 – 2020-06-30963000000 USD20210803Open filing evidence
2020-01-01 – 2020-06-304294000000 USD20210803Open filing evidence
2019-01-01 – 2019-12-3113901000000 USD20210218Open filing evidence

Operating Segments · APEC

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30273000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30560000000 USD20260803Open filing evidence
2026-01-01 – 2026-03-31287000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-311073000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30247000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30766000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30256000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30519000000 USD20260803Open filing evidence
2025-01-01 – 2025-03-31263000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31976000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30230000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30696000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30232000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30466000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31234000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31830000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-30199000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30591000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-30199000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30392000000 USD20240731Open filing evidence
2023-01-01 – 2023-03-31193000000 USD20240501Open filing evidence
2022-01-01 – 2022-12-31564000000 USD20250211Open filing evidence

Operating Segments · APEC · Reimbursements

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30123000000 USD20240731Open filing evidence
2024-01-01 – 2024-06-30239000000 USD20240731Open filing evidence
2023-04-01 – 2023-06-30100000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30197000000 USD20240731Open filing evidence

Operating Segments · Asia Pacific Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:AsiaPacificSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-31612000000 USD20210218Open filing evidence
2020-07-01 – 2020-09-30157000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-30412000000 USD20201106Open filing evidence
2020-04-01 – 2020-06-3086000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-30255000000 USD20200810Open filing evidence
2020-01-01 – 2020-03-31169000000 USD20200511Open filing evidence
2019-01-01 – 2019-12-311189000000 USD20210218Open filing evidence

Operating Segments · Asia Pacific Segment · Owned Leasedand Other

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:AsiaPacificSegmentMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-3189000000 USD20210218Open filing evidence
2020-07-01 – 2020-09-3022000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-3060000000 USD20201106Open filing evidence
2020-04-01 – 2020-06-307000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-3038000000 USD20200810Open filing evidence
2019-01-01 – 2019-12-31178000000 USD20210218Open filing evidence

Operating Segments · Asia Pacific Segment · Reimbursements

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:AsiaPacificSegmentMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-3081000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-30246000000 USD20201106Open filing evidence

Operating Segments · EMEA Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30610000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-301117000000 USD20260803Open filing evidence
2026-01-01 – 2026-03-31507000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-312407000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30613000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-301782000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30655000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-301169000000 USD20260803Open filing evidence
2025-01-01 – 2025-03-31514000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-312406000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30635000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-301775000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30629000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-301140000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31511000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-312268000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-30603000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-301662000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-30588000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-301059000000 USD20240731Open filing evidence
2022-01-01 – 2022-12-311929000000 USD20250211Open filing evidence

Operating Segments · EMEA Segment · Reimbursements

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30322000000 USD20240731Open filing evidence
2024-01-01 – 2024-06-30600000000 USD20240731Open filing evidence
2023-04-01 – 2023-06-30307000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30563000000 USD20240731Open filing evidence

Operating Segments · Europe Middle Eastand Africa Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastandAfricaSegmentMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-30162000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-30593000000 USD20201106Open filing evidence
2020-04-01 – 2020-06-3087000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-30431000000 USD20200810Open filing evidence
2020-01-01 – 2020-03-31344000000 USD20200511Open filing evidence

Operating Segments · Europe Middle East And Africa Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastAndAfricaSegmentMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-31758000000 USD20210218Open filing evidence
2019-01-01 – 2019-12-311932000000 USD20210218Open filing evidence

Operating Segments · Europe Middle East And Africa Segment · Fee Service

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastAndAfricaSegmentMember;srt:ProductOrServiceAxis=mar:FeeServiceMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-3198000000 USD20210218Open filing evidence
2019-01-01 – 2019-12-31410000000 USD20210218Open filing evidence

Operating Segments · Europe Middle Eastand Africa Segment · Owned Leasedand Other

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastandAfricaSegmentMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-3026000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-30126000000 USD20201106Open filing evidence
2020-04-01 – 2020-06-309000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-30100000000 USD20200810Open filing evidence

Operating Segments · Europe Middle East And Africa Segment · Owned Leasedand Other

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastAndAfricaSegmentMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-31153000000 USD20210218Open filing evidence
2019-01-01 – 2019-12-31553000000 USD20210218Open filing evidence

Operating Segments · Europe Middle Eastand Africa Segment · Reimbursements

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastandAfricaSegmentMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-30112000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-30395000000 USD20201106Open filing evidence

Operating Segments · Europe Middle East And Africa Segment · Reimbursements

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastAndAfricaSegmentMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-12-31507000000 USD20210218Open filing evidence
2019-01-01 – 2019-12-31969000000 USD20210218Open filing evidence

Operating Segments · Greater China

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30164000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30316000000 USD20260803Open filing evidence
2026-01-01 – 2026-03-31152000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-31590000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30142000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-30430000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30152000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30288000000 USD20260803Open filing evidence
2025-01-01 – 2025-03-31136000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-31582000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30142000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-30430000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30140000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-30288000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-31148000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-31600000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-30160000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-30445000000 USD20241104Open filing evidence
2022-01-01 – 2022-12-31351000000 USD20250211Open filing evidence

Operating Segments · International Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-301124000000 USD20230801Open filing evidence
2023-01-01 – 2023-06-302132000000 USD20230801Open filing evidence
2022-01-01 – 2022-12-313486000000 USD20230214Open filing evidence
2022-07-01 – 2022-09-30908000000 USD20221103Open filing evidence
2022-01-01 – 2022-09-302458000000 USD20221103Open filing evidence
2022-04-01 – 2022-06-30875000000 USD20230801Open filing evidence
2022-01-01 – 2022-06-301550000000 USD20230801Open filing evidence
2022-01-01 – 2022-03-31675000000 USD20220504Open filing evidence
2021-01-01 – 2021-12-312254000000 USD20230214Open filing evidence
2021-07-01 – 2021-09-30621000000 USD20221103Open filing evidence
2021-01-01 – 2021-09-301534000000 USD20221103Open filing evidence
2021-04-01 – 2021-06-30522000000 USD20220802Open filing evidence
2021-01-01 – 2021-06-30913000000 USD20220802Open filing evidence
2021-01-01 – 2021-03-31391000000 USD20220504Open filing evidence
2020-01-01 – 2020-12-311597000000 USD20230214Open filing evidence
2020-07-01 – 2020-09-30359000000 USD20211103Open filing evidence
2020-01-01 – 2020-09-301185000000 USD20211103Open filing evidence
2020-04-01 – 2020-06-30194000000 USD20210803Open filing evidence
2020-01-01 – 2020-06-30826000000 USD20210803Open filing evidence
2020-01-01 – 2020-03-31632000000 USD20210510Open filing evidence
2019-01-01 – 2019-12-313544000000 USD20220215Open filing evidence

Operating Segments · International Segment · Fee Service

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ProductOrServiceAxis=mar:FeeServiceMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-30309000000 USD20230801Open filing evidence
2023-01-01 – 2023-06-30595000000 USD20230801Open filing evidence
2022-04-01 – 2022-06-30208000000 USD20230801Open filing evidence
2022-01-01 – 2022-06-30375000000 USD20230801Open filing evidence
2021-01-01 – 2021-12-31548000000 USD20220215Open filing evidence
2021-07-01 – 2021-09-30150000000 USD20211103Open filing evidence
2021-01-01 – 2021-09-30360000000 USD20211103Open filing evidence
2021-04-01 – 2021-06-30127000000 USD20210803Open filing evidence
2021-01-01 – 2021-06-30210000000 USD20210803Open filing evidence
2020-01-01 – 2020-12-31314000000 USD20220215Open filing evidence
2020-07-01 – 2020-09-3084000000 USD20211103Open filing evidence
2020-01-01 – 2020-09-30208000000 USD20211103Open filing evidence
2020-04-01 – 2020-06-3028000000 USD20210803Open filing evidence
2020-01-01 – 2020-06-30124000000 USD20210803Open filing evidence
2019-01-01 – 2019-12-311018000000 USD20220215Open filing evidence

Operating Segments · International Segment · Owned Leasedand Other

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-03-31153000000 USD20220504Open filing evidence
2021-01-01 – 2021-12-31467000000 USD20220215Open filing evidence
2021-01-01 – 2021-03-3166000000 USD20220504Open filing evidence
2020-01-01 – 2020-12-31317000000 USD20220215Open filing evidence
2020-01-01 – 2020-03-31168000000 USD20210510Open filing evidence

Operating Segments · International Segment · Reimbursements

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-30573000000 USD20230801Open filing evidence
2023-01-01 – 2023-06-301081000000 USD20230801Open filing evidence
2022-04-01 – 2022-06-30450000000 USD20230801Open filing evidence
2022-01-01 – 2022-06-30805000000 USD20230801Open filing evidence
2021-04-01 – 2021-06-30275000000 USD20210803Open filing evidence
2021-01-01 – 2021-06-30517000000 USD20210803Open filing evidence
2021-01-01 – 2021-03-31242000000 USD20210510Open filing evidence
2020-04-01 – 2020-06-30147000000 USD20210803Open filing evidence
2020-01-01 – 2020-06-30515000000 USD20210803Open filing evidence
2020-01-01 – 2020-03-31368000000 USD20210510Open filing evidence

Operating Segments · North American Full Service Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-301079000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-304899000000 USD20200810Open filing evidence
2020-01-01 – 2020-03-313820000000 USD20200511Open filing evidence

Operating Segments · North American Full Service Segment · Owned Leasedand Other

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-3017000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-30119000000 USD20200810Open filing evidence

Operating Segments · US And Canada Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-305263000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-3010218000000 USD20260803Open filing evidence
2026-01-01 – 2026-03-314955000000 USD20260506Open filing evidence
2025-01-01 – 2025-12-3119349000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-304741000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-3014401000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-304962000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-309660000000 USD20260803Open filing evidence
2025-01-01 – 2025-03-314698000000 USD20260506Open filing evidence
2024-01-01 – 2024-12-3118612000000 USD20260210Open filing evidence
2024-07-01 – 2024-09-304596000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-3013851000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-304765000000 USD20250805Open filing evidence
2024-01-01 – 2024-06-309255000000 USD20250805Open filing evidence
2024-01-01 – 2024-03-314490000000 USD20250506Open filing evidence
2023-01-01 – 2023-12-3117696000000 USD20260210Open filing evidence
2023-07-01 – 2023-09-304333000000 USD20241104Open filing evidence
2023-01-01 – 2023-09-3013113000000 USD20241104Open filing evidence
2023-04-01 – 2023-06-304502000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-308780000000 USD20240731Open filing evidence
2023-01-01 – 2023-03-314278000000 USD20230502Open filing evidence
2022-01-01 – 2022-12-3115753000000 USD20250211Open filing evidence
2022-07-01 – 2022-09-304000000000 USD20231102Open filing evidence
2022-01-01 – 2022-09-3011388000000 USD20231102Open filing evidence
2022-04-01 – 2022-06-304117000000 USD20230801Open filing evidence
2022-01-01 – 2022-06-307388000000 USD20230801Open filing evidence
2022-01-01 – 2022-03-313271000000 USD20230502Open filing evidence
2021-01-01 – 2021-12-3110356000000 USD20230214Open filing evidence
2021-07-01 – 2021-09-303006000000 USD20211103Open filing evidence
2021-01-01 – 2021-09-307055000000 USD20211103Open filing evidence
2021-04-01 – 2021-06-302328000000 USD20220802Open filing evidence
2021-01-01 – 2021-06-304049000000 USD20220802Open filing evidence
2021-01-01 – 2021-03-311721000000 USD20220504Open filing evidence
2020-01-01 – 2020-12-317905000000 USD20230214Open filing evidence
2020-07-01 – 2020-09-301586000000 USD20211103Open filing evidence
2020-01-01 – 2020-09-306485000000 USD20211103Open filing evidence
2020-04-01 – 2020-06-301079000000 USD20210803Open filing evidence
2020-01-01 – 2020-06-304899000000 USD20210803Open filing evidence
2020-01-01 – 2020-03-313820000000 USD20210510Open filing evidence

Operating Segments · US And Canada Segment · Fee Service

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ProductOrServiceAxis=mar:FeeServiceMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-30734000000 USD20230801Open filing evidence
2023-01-01 – 2023-06-301390000000 USD20230801Open filing evidence
2022-04-01 – 2022-06-30668000000 USD20230801Open filing evidence
2022-01-01 – 2022-06-301143000000 USD20230801Open filing evidence
2021-01-01 – 2021-12-311525000000 USD20220215Open filing evidence
2021-07-01 – 2021-09-30463000000 USD20211103Open filing evidence
2021-01-01 – 2021-09-301060000000 USD20211103Open filing evidence
2021-04-01 – 2021-06-30360000000 USD20220802Open filing evidence
2021-01-01 – 2021-06-30597000000 USD20220802Open filing evidence
2021-01-01 – 2021-03-31237000000 USD20210510Open filing evidence
2020-01-01 – 2020-12-31806000000 USD20220215Open filing evidence
2020-07-01 – 2020-09-30158000000 USD20211103Open filing evidence
2020-01-01 – 2020-09-30644000000 USD20211103Open filing evidence
2020-01-01 – 2020-03-31387000000 USD20210510Open filing evidence

Operating Segments · US And Canada Segment · Owned Leasedand Other

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2022-04-01 – 2022-06-30124000000 USD20220802Open filing evidence
2022-01-01 – 2022-06-30216000000 USD20220802Open filing evidence
2021-04-01 – 2021-06-3057000000 USD20220802Open filing evidence
2021-01-01 – 2021-06-3092000000 USD20220802Open filing evidence
2021-01-01 – 2021-03-3135000000 USD20210510Open filing evidence
2020-01-01 – 2020-12-31198000000 USD20210218Open filing evidence
2020-01-01 – 2020-03-31102000000 USD20210510Open filing evidence

Operating Segments · US And Canada Segment · Reimbursements

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-303565000000 USD20231102Open filing evidence
2023-01-01 – 2023-09-3010722000000 USD20231102Open filing evidence
2023-04-01 – 2023-06-303652000000 USD20230801Open filing evidence
2023-01-01 – 2023-06-307157000000 USD20230801Open filing evidence
2022-07-01 – 2022-09-303253000000 USD20231102Open filing evidence
2022-01-01 – 2022-09-309282000000 USD20231102Open filing evidence
2022-04-01 – 2022-06-303325000000 USD20230801Open filing evidence
2022-01-01 – 2022-06-306029000000 USD20230801Open filing evidence
2021-04-01 – 2021-06-301911000000 USD20220802Open filing evidence
2021-01-01 – 2021-06-303360000000 USD20220802Open filing evidence
2021-01-01 – 2021-03-311449000000 USD20210510Open filing evidence
2020-01-01 – 2020-03-313331000000 USD20210510Open filing evidence

Fee Service · Operating Segments · APEC

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3186000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-3166000000 USD20240501Open filing evidence

Fee Service · Operating Segments · Asia Pacific Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:AsiaPacificSegmentMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-3054000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-30106000000 USD20201106Open filing evidence
2020-04-01 – 2020-06-3021000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-3052000000 USD20200810Open filing evidence

Fee Service · Operating Segments · Europe Middle Eastand Africa Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastandAfricaSegmentMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-3024000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-3072000000 USD20201106Open filing evidence
2020-04-01 – 2020-06-306000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-3048000000 USD20200810Open filing evidence

Fee Service · Operating Segments · North American Full Service Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-3099000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-30486000000 USD20200810Open filing evidence

Fee Service · Operating Segments · US And Canada Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-30674000000 USD20231102Open filing evidence
2023-01-01 – 2023-09-302064000000 USD20231102Open filing evidence
2022-07-01 – 2022-09-30633000000 USD20231102Open filing evidence
2022-01-01 – 2022-09-301776000000 USD20231102Open filing evidence

Fee Service · APEC · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3085000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30187000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-3081000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30178000000 USD20260803Open filing evidence

Fee Service · EMEA Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30154000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30281000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-30164000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30278000000 USD20260803Open filing evidence

Fee Service · Greater China · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3068000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30136000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-3064000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30124000000 USD20260803Open filing evidence

Fee Service · International Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-311268000000 USD20240213Open filing evidence
2022-01-01 – 2022-12-31888000000 USD20240213Open filing evidence
2021-01-01 – 2021-12-31548000000 USD20240213Open filing evidence

Fee Service · North American Full Service Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-30158000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-30644000000 USD20201106Open filing evidence

Fee Service · US And Canada Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:FeeServiceMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30883000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-301635000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-30779000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-301468000000 USD20260803Open filing evidence

Owned Leasedand Other · Operating Segments · APEC

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3132000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-3130000000 USD20240501Open filing evidence

Owned Leasedand Other · Operating Segments · International Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember
PeriodValueUnitFiledEvidence
2022-07-01 – 2022-09-30205000000 USD20221103Open filing evidence
2022-01-01 – 2022-09-30575000000 USD20221103Open filing evidence
2021-07-01 – 2021-09-30134000000 USD20221103Open filing evidence
2021-01-01 – 2021-09-30320000000 USD20221103Open filing evidence
2021-04-01 – 2021-06-30120000000 USD20210803Open filing evidence
2021-01-01 – 2021-06-30186000000 USD20210803Open filing evidence
2020-04-01 – 2020-06-3019000000 USD20210803Open filing evidence
2020-01-01 – 2020-06-30187000000 USD20210803Open filing evidence

Owned Leasedand Other · Operating Segments · US And Canada Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember
PeriodValueUnitFiledEvidence
2021-04-01 – 2021-06-3057000000 USD20210803Open filing evidence
2021-01-01 – 2021-06-3092000000 USD20210803Open filing evidence
2020-04-01 – 2020-06-3017000000 USD20210803Open filing evidence
2020-01-01 – 2020-06-30119000000 USD20210803Open filing evidence

Owned Leasedand Other · APEC · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3047000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-3086000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-3043000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-3078000000 USD20260803Open filing evidence

Owned Leasedand Other · EMEA Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30158000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30274000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-30164000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30278000000 USD20260803Open filing evidence

Owned Leasedand Other · Greater China · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3012000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-3020000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-3010000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-3017000000 USD20260803Open filing evidence
2024-01-01 – 2024-03-317000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-314000000 USD20240501Open filing evidence

Owned Leasedand Other · US And Canada Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30148000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30288000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-30140000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30260000000 USD20260803Open filing evidence

Reimbursements · Operating Segments · APEC

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31116000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-3197000000 USD20240501Open filing evidence

Reimbursements · Operating Segments · Asia Pacific Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:AsiaPacificSegmentMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-3058000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-30165000000 USD20200810Open filing evidence

Reimbursements · Operating Segments · Europe Middle Eastand Africa Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EuropeMiddleEastandAfricaSegmentMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-3072000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-30283000000 USD20200810Open filing evidence

Reimbursements · Operating Segments · International Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember
PeriodValueUnitFiledEvidence
2022-07-01 – 2022-09-30468000000 USD20221103Open filing evidence
2022-01-01 – 2022-09-301273000000 USD20221103Open filing evidence
2022-01-01 – 2022-03-31355000000 USD20220504Open filing evidence
2021-01-01 – 2021-12-311239000000 USD20220215Open filing evidence
2021-07-01 – 2021-09-30337000000 USD20221103Open filing evidence
2021-01-01 – 2021-09-30854000000 USD20221103Open filing evidence
2021-01-01 – 2021-03-31242000000 USD20220504Open filing evidence
2020-01-01 – 2020-12-31966000000 USD20220215Open filing evidence

Reimbursements · Operating Segments · North American Full Service Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-30963000000 USD20200810Open filing evidence
2020-01-01 – 2020-06-304294000000 USD20200810Open filing evidence

Reimbursements · Operating Segments · US And Canada Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-03-312704000000 USD20220504Open filing evidence
2021-01-01 – 2021-12-318549000000 USD20220215Open filing evidence
2021-01-01 – 2021-03-311449000000 USD20220504Open filing evidence
2020-01-01 – 2020-12-316901000000 USD20220215Open filing evidence

Reimbursements · APEC · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:APECMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30141000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30287000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-30132000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30263000000 USD20260803Open filing evidence

Reimbursements · EMEA Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30298000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30562000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-30327000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30613000000 USD20260803Open filing evidence
2024-01-01 – 2024-03-31278000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-31256000000 USD20240501Open filing evidence

Reimbursements · Greater China · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3084000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30160000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-3078000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30147000000 USD20260803Open filing evidence
2024-01-01 – 2024-03-3176000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-3170000000 USD20240501Open filing evidence

Reimbursements · International Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-312250000000 USD20240213Open filing evidence
2022-01-01 – 2022-12-311797000000 USD20240213Open filing evidence
2021-01-01 – 2021-12-311239000000 USD20240213Open filing evidence

Reimbursements · US And Canada Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=mar:ReimbursementsMember;us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-304232000000 USD20260803Open filing evidence
2026-01-01 – 2026-06-308295000000 USD20260803Open filing evidence
2025-04-01 – 2025-06-304043000000 USD20260803Open filing evidence
2025-01-01 – 2025-06-307932000000 USD20260803Open filing evidence
2024-01-01 – 2024-03-313717000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-313505000000 USD20240501Open filing evidence

EMEA Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31511000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-31471000000 USD20240501Open filing evidence

EMEA Segment · Fee Service · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31115000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-31102000000 USD20240501Open filing evidence

EMEA Segment · Owned Leasedand Other · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:EMEASegmentMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31118000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-31113000000 USD20240501Open filing evidence

Greater China · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30140000000 USD20240731Open filing evidence
2024-01-01 – 2024-06-30288000000 USD20240731Open filing evidence
2024-01-01 – 2024-03-31148000000 USD20240501Open filing evidence
2023-04-01 – 2023-06-30154000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30285000000 USD20240731Open filing evidence
2023-01-01 – 2023-03-31131000000 USD20240501Open filing evidence

Greater China · Operating Segments · Fee Service

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-3059000000 USD20240731Open filing evidence
2024-01-01 – 2024-06-30124000000 USD20240731Open filing evidence
2023-04-01 – 2023-06-3068000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30125000000 USD20240731Open filing evidence

Greater China · Operating Segments · Owned Leasedand Other

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-306000000 USD20240731Open filing evidence
2024-01-01 – 2024-06-3013000000 USD20240731Open filing evidence
2023-04-01 – 2023-06-305000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-309000000 USD20240731Open filing evidence

Greater China · Operating Segments · Reimbursements

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-3075000000 USD20240731Open filing evidence
2024-01-01 – 2024-06-30151000000 USD20240731Open filing evidence
2023-04-01 – 2023-06-3081000000 USD20240731Open filing evidence
2023-01-01 – 2023-06-30151000000 USD20240731Open filing evidence

Greater China · Fee Service · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:GreaterChinaMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3165000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-3157000000 USD20240501Open filing evidence

International Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-314455000000 USD20240213Open filing evidence
2023-07-01 – 2023-09-301125000000 USD20231102Open filing evidence
2023-01-01 – 2023-09-303257000000 USD20231102Open filing evidence
2023-01-01 – 2023-03-311008000000 USD20230502Open filing evidence
2022-01-01 – 2022-12-313486000000 USD20240213Open filing evidence
2022-07-01 – 2022-09-30908000000 USD20231102Open filing evidence
2022-01-01 – 2022-09-302458000000 USD20231102Open filing evidence
2022-01-01 – 2022-03-31675000000 USD20230502Open filing evidence
2021-01-01 – 2021-12-312254000000 USD20240213Open filing evidence

International Segment · Operating Segments · Fee Service

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-31286000000 USD20230502Open filing evidence
2022-01-01 – 2022-03-31167000000 USD20230502Open filing evidence

International Segment · Operating Segments · Owned Leasedand Other

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31937000000 USD20240213Open filing evidence
2023-07-01 – 2023-09-30235000000 USD20231102Open filing evidence
2023-01-01 – 2023-09-30691000000 USD20231102Open filing evidence
2023-01-01 – 2023-03-31214000000 USD20230502Open filing evidence
2022-01-01 – 2022-12-31801000000 USD20240213Open filing evidence
2022-07-01 – 2022-09-30205000000 USD20231102Open filing evidence
2022-01-01 – 2022-09-30575000000 USD20231102Open filing evidence
2022-01-01 – 2022-03-31153000000 USD20230502Open filing evidence
2021-01-01 – 2021-12-31467000000 USD20240213Open filing evidence

International Segment · Operating Segments · Reimbursements

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-30577000000 USD20231102Open filing evidence
2023-01-01 – 2023-09-301658000000 USD20231102Open filing evidence
2023-01-01 – 2023-03-31508000000 USD20230502Open filing evidence
2022-07-01 – 2022-09-30468000000 USD20231102Open filing evidence
2022-01-01 – 2022-09-301273000000 USD20231102Open filing evidence
2022-01-01 – 2022-03-31355000000 USD20230502Open filing evidence

International Segment · Fee Service · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:InternationalSegmentMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-30313000000 USD20231102Open filing evidence
2023-01-01 – 2023-09-30908000000 USD20231102Open filing evidence
2022-07-01 – 2022-09-30235000000 USD20231102Open filing evidence
2022-01-01 – 2022-09-30610000000 USD20231102Open filing evidence

North American Full Service Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-301586000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-306485000000 USD20201106Open filing evidence

North American Full Service Segment · Operating Segments · Owned Leasedand Other

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-3036000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-30155000000 USD20201106Open filing evidence

North American Full Service Segment · Operating Segments · Reimbursements

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:NorthAmericanFullServiceSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember
PeriodValueUnitFiledEvidence
2020-07-01 – 2020-09-301392000000 USD20201106Open filing evidence
2020-01-01 – 2020-09-305686000000 USD20201106Open filing evidence

US And Canada Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-314490000000 USD20240501Open filing evidence
2023-01-01 – 2023-12-3117696000000 USD20240213Open filing evidence
2023-01-01 – 2023-03-314278000000 USD20240501Open filing evidence
2022-01-01 – 2022-12-3115753000000 USD20240213Open filing evidence
2022-07-01 – 2022-09-304000000000 USD20221103Open filing evidence
2022-01-01 – 2022-09-3011388000000 USD20221103Open filing evidence
2021-01-01 – 2021-12-3110356000000 USD20240213Open filing evidence
2021-07-01 – 2021-09-303006000000 USD20221103Open filing evidence
2021-01-01 – 2021-09-307055000000 USD20221103Open filing evidence

US And Canada Segment · Operating Segments · Fee Service

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:FeeServiceMember
PeriodValueUnitFiledEvidence
2022-07-01 – 2022-09-30633000000 USD20221103Open filing evidence
2022-01-01 – 2022-09-301776000000 USD20221103Open filing evidence
2021-07-01 – 2021-09-30463000000 USD20221103Open filing evidence
2021-01-01 – 2021-09-301060000000 USD20221103Open filing evidence

US And Canada Segment · Operating Segments · Owned Leasedand Other

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31506000000 USD20240213Open filing evidence
2022-01-01 – 2022-12-31479000000 USD20240213Open filing evidence
2021-01-01 – 2021-12-31282000000 USD20240213Open filing evidence

US And Canada Segment · Fee Service · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ProductOrServiceAxis=mar:FeeServiceMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31665000000 USD20240501Open filing evidence
2023-01-01 – 2023-12-312734000000 USD20240213Open filing evidence
2023-01-01 – 2023-03-31656000000 USD20240501Open filing evidence
2022-01-01 – 2022-12-312426000000 USD20240213Open filing evidence
2021-01-01 – 2021-12-311525000000 USD20240213Open filing evidence

US And Canada Segment · Owned Leasedand Other · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ProductOrServiceAxis=mar:OwnedLeasedandOtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31108000000 USD20240501Open filing evidence
2023-01-01 – 2023-03-31117000000 USD20240501Open filing evidence
2022-07-01 – 2022-09-30114000000 USD20221103Open filing evidence
2022-01-01 – 2022-09-30330000000 USD20221103Open filing evidence
2021-07-01 – 2021-09-3093000000 USD20221103Open filing evidence
2021-01-01 – 2021-09-30185000000 USD20221103Open filing evidence

US And Canada Segment · Reimbursements · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mar:USAndCanadaSegmentMember;srt:ProductOrServiceAxis=mar:ReimbursementsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-3114456000000 USD20240213Open filing evidence
2022-01-01 – 2022-12-3112848000000 USD20240213Open filing evidence
2022-07-01 – 2022-09-303253000000 USD20221103Open filing evidence
2022-01-01 – 2022-09-309282000000 USD20221103Open filing evidence
2021-01-01 – 2021-12-318549000000 USD20240213Open filing evidence
2021-07-01 – 2021-09-302450000000 USD20221103Open filing evidence
2021-01-01 – 2021-09-305810000000 USD20221103Open filing evidence