Segment disclosures

Company overview

LINCOLN NATIONAL LIFE INSURANCE CO

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

Revenue · Reported segment facts

46 dimension combinations 492 retained observations 40 reported periods

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 · Annuities

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-301095000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-01-01 – 2023-09-303236000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-04-01 – 2023-06-301097000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2023-01-01 – 2023-06-302140000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-07-01 – 2022-09-301021000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-01-01 – 2022-09-303071000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-04-01 – 2022-06-301003000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-01-01 – 2022-06-302048000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence

Operating Segments · Annuities Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301354000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2026-01-01 – 2026-06-302744000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2026-01-01 – 2026-03-311390000000 USD2026-05-13 · 22:14:56.000ZOpen filing evidence
2025-01-01 – 2025-12-314323000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2025-07-01 – 2025-09-301015000000 USD2025-11-07 · 01:00:47.000ZOpen filing evidence
2025-01-01 – 2025-09-303093000000 USD2025-11-07 · 01:00:47.000ZOpen filing evidence
2025-04-01 – 2025-06-301151000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2025-01-01 – 2025-06-302079000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2025-01-01 – 2025-03-31926000000 USD2026-05-13 · 22:14:56.000ZOpen filing evidence
2024-01-01 – 2024-12-314812000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2024-07-01 – 2024-09-30855000000 RestatedUSD2025-11-07 · 01:00:47.000ZOpen filing evidence
2024-01-01 – 2024-09-303304000000 RestatedUSD2025-11-07 · 01:00:47.000ZOpen filing evidence
2024-04-01 – 2024-06-301145000000 RestatedUSD2025-08-07 · 23:41:31.000ZOpen filing evidence
2024-01-01 – 2024-06-302448000000 RestatedUSD2025-08-07 · 23:41:31.000ZOpen filing evidence
2024-01-01 – 2024-03-311302000000 RestatedUSD2025-05-15 · 22:14:36.000ZOpen filing evidence
2023-01-01 – 2023-12-312044000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2023-07-01 – 2023-09-301095000000 USD2024-11-08 · 02:51:55.000ZOpen filing evidence
2023-01-01 – 2023-09-303236000000 USD2024-11-08 · 02:51:55.000ZOpen filing evidence
2023-04-01 – 2023-06-301097000000 USD2024-08-14 · 19:42:17.000ZOpen filing evidence
2023-01-01 – 2023-06-302140000000 USD2024-08-14 · 19:42:17.000ZOpen filing evidence
2023-01-01 – 2023-03-311043000000 USD2024-05-09 · 21:45:00.000ZOpen filing evidence
2022-01-01 – 2022-12-314063000000 USD2025-03-15 · 00:37:28.000ZOpen filing evidence

Operating Segments · Group Protection

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GroupProtectionMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-301387000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-01-01 – 2023-09-304174000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-04-01 – 2023-06-301400000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2023-01-01 – 2023-06-302787000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-07-01 – 2022-09-301332000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-01-01 – 2022-09-303958000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-04-01 – 2022-06-301323000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-01-01 – 2022-06-302626000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence

Operating Segments · Group Protection Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GroupProtectionSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301535000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2026-01-01 – 2026-06-303076000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2026-01-01 – 2026-03-311541000000 USD2026-05-13 · 22:14:56.000ZOpen filing evidence
2025-01-01 – 2025-12-314665000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2025-07-01 – 2025-09-30284000000 USD2025-11-07 · 01:00:47.000ZOpen filing evidence
2025-01-01 – 2025-09-303187000000 USD2025-11-07 · 01:00:47.000ZOpen filing evidence
2025-04-01 – 2025-06-301470000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2025-01-01 – 2025-06-302904000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2025-01-01 – 2025-03-311434000000 USD2026-05-13 · 22:14:56.000ZOpen filing evidence
2024-01-01 – 2024-12-311066000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2024-07-01 – 2024-09-301222000000 RestatedUSD2025-11-07 · 01:00:47.000ZOpen filing evidence
2024-01-01 – 2024-09-30-411000000 RestatedUSD2025-11-07 · 01:00:47.000ZOpen filing evidence
2024-04-01 – 2024-06-30-3058000000 RestatedUSD2025-08-07 · 23:41:31.000ZOpen filing evidence
2024-01-01 – 2024-06-30-1633000000 RestatedUSD2025-08-07 · 23:41:31.000ZOpen filing evidence
2024-01-01 – 2024-03-311424000000 USD2025-05-15 · 22:14:36.000ZOpen filing evidence
2023-01-01 – 2023-12-315550000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2023-07-01 – 2023-09-301387000000 USD2024-11-08 · 02:51:55.000ZOpen filing evidence
2023-01-01 – 2023-09-304174000000 USD2024-11-08 · 02:51:55.000ZOpen filing evidence
2023-04-01 – 2023-06-301400000000 USD2024-08-14 · 19:42:17.000ZOpen filing evidence
2023-01-01 – 2023-06-302787000000 USD2024-08-14 · 19:42:17.000ZOpen filing evidence
2023-01-01 – 2023-03-311388000000 USD2024-05-09 · 21:45:00.000ZOpen filing evidence
2022-01-01 – 2022-12-315303000000 USD2025-03-15 · 00:37:28.000ZOpen filing evidence

Operating Segments · Life Segment

Consolidation Items · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:LifeSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301075000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2026-01-01 – 2026-06-302380000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2026-01-01 – 2026-03-311305000000 USD2026-05-13 · 22:14:56.000ZOpen filing evidence
2025-01-01 – 2025-12-314751000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2025-07-01 – 2025-09-301147000000 USD2025-11-07 · 01:00:47.000ZOpen filing evidence
2025-01-01 – 2025-09-303497000000 USD2025-11-07 · 01:00:47.000ZOpen filing evidence
2025-04-01 – 2025-06-301129000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2025-01-01 – 2025-06-302350000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2025-01-01 – 2025-03-311220000000 USD2026-05-13 · 22:14:56.000ZOpen filing evidence
2024-01-01 – 2024-12-314821000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2024-07-01 – 2024-09-301088000000 RestatedUSD2025-11-07 · 01:00:47.000ZOpen filing evidence
2024-01-01 – 2024-09-303466000000 RestatedUSD2025-11-07 · 01:00:47.000ZOpen filing evidence
2024-04-01 – 2024-06-301320000000 RestatedUSD2025-08-07 · 23:41:31.000ZOpen filing evidence
2024-01-01 – 2024-06-302378000000 RestatedUSD2025-08-07 · 23:41:31.000ZOpen filing evidence
2024-01-01 – 2024-03-311058000000 RestatedUSD2025-05-15 · 22:14:36.000ZOpen filing evidence
2023-01-01 – 2023-12-312090000000 RestatedUSD2026-03-13 · 00:31:01.000ZOpen filing evidence
2023-07-01 – 2023-09-301627000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-07-01 – 2023-09-301627000000 USD2024-11-08 · 02:51:55.000ZOpen filing evidence
2023-01-01 – 2023-09-304920000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-01-01 – 2023-09-304920000000 USD2024-11-08 · 02:51:55.000ZOpen filing evidence
2023-04-01 – 2023-06-301656000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2023-04-01 – 2023-06-301656000000 USD2024-08-14 · 19:42:17.000ZOpen filing evidence
2023-01-01 – 2023-06-303294000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2023-01-01 – 2023-06-303294000000 USD2024-08-14 · 19:42:17.000ZOpen filing evidence
2023-01-01 – 2023-03-311638000000 USD2024-05-09 · 21:45:00.000ZOpen filing evidence
2022-01-01 – 2022-12-316845000000 RestatedUSD2025-03-15 · 00:37:28.000ZOpen filing evidence
2022-07-01 – 2022-09-301536000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-01-01 – 2022-09-304756000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-04-01 – 2022-06-301602000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-01-01 – 2022-06-303220000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2021-01-01 – 2021-12-316938000000 USD2024-03-15 · 23:51:49.000ZOpen filing evidence

Operating Segments · Other Operations

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:OtherOperationsMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-3032000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-01-01 – 2023-09-30106000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-04-01 – 2023-06-3036000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2023-01-01 – 2023-06-3075000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-07-01 – 2022-09-3028000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-01-01 – 2022-09-3093000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-04-01 – 2022-06-3028000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-01-01 – 2022-06-3065000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence

Operating Segments · Retirement Plan Services

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-30321000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-01-01 – 2023-09-30972000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-04-01 – 2023-06-30328000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2023-01-01 – 2023-06-30650000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-07-01 – 2022-09-30312000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-01-01 – 2022-09-30936000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-04-01 – 2022-06-30310000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence
2022-01-01 – 2022-06-30624000000 Unit12023-08-07 · 22:13:08.000ZOpen filing evidence

Operating Segments · Retirement Plan Services Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30349000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2026-01-01 – 2026-06-30690000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2026-01-01 – 2026-03-31340000000 USD2026-05-13 · 22:14:56.000ZOpen filing evidence
2025-01-01 – 2025-12-311314000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2025-07-01 – 2025-09-30337000000 USD2025-11-07 · 01:00:47.000ZOpen filing evidence
2025-01-01 – 2025-09-30972000000 USD2025-11-07 · 01:00:47.000ZOpen filing evidence
2025-04-01 – 2025-06-30318000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2025-01-01 – 2025-06-30636000000 USD2026-08-05 · 18:00:55.000ZOpen filing evidence
2025-01-01 – 2025-03-31320000000 USD2026-05-13 · 22:14:56.000ZOpen filing evidence
2024-01-01 – 2024-12-311201000000 USD2026-03-13 · 00:31:01.000ZOpen filing evidence
2024-07-01 – 2024-09-30312000000 RestatedUSD2025-11-07 · 01:00:47.000ZOpen filing evidence
2024-01-01 – 2024-09-30872000000 RestatedUSD2025-11-07 · 01:00:47.000ZOpen filing evidence
2024-04-01 – 2024-06-30249000000 RestatedUSD2025-08-07 · 23:41:31.000ZOpen filing evidence
2024-01-01 – 2024-06-30561000000 RestatedUSD2025-08-07 · 23:41:31.000ZOpen filing evidence
2024-01-01 – 2024-03-31312000000 RestatedUSD2025-05-15 · 22:14:36.000ZOpen filing evidence
2023-01-01 – 2023-12-311254000000 RestatedUSD2026-03-13 · 00:31:01.000ZOpen filing evidence
2023-07-01 – 2023-09-30321000000 USD2024-11-08 · 02:51:55.000ZOpen filing evidence
2023-01-01 – 2023-09-30972000000 USD2024-11-08 · 02:51:55.000ZOpen filing evidence
2023-04-01 – 2023-06-30328000000 USD2024-08-14 · 19:42:17.000ZOpen filing evidence
2023-01-01 – 2023-06-30650000000 USD2024-08-14 · 19:42:17.000ZOpen filing evidence
2023-01-01 – 2023-03-31322000000 USD2024-05-09 · 21:45:00.000ZOpen filing evidence
2022-01-01 – 2022-12-311240000000 RestatedUSD2025-03-15 · 00:37:28.000ZOpen filing evidence
2021-01-01 – 2021-12-311306000000 USD2024-03-15 · 23:51:49.000ZOpen filing evidence

Fee Income · Annuities Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=cik0000726865:FeeIncomeMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-31534000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-30137000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-30403000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence

Fee Income · Life Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=cik0000726865:FeeIncomeMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:LifeSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-3122000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-306000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-3017000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence

Fee Income · Retirement Plan Services Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=cik0000726865:FeeIncomeMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-31167000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-3042000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-30126000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence

Other Revenues · Annuities Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=cik0000726865:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-31372000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-3093000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-30278000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence

Other Revenues · Group Protection Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=cik0000726865:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GroupProtectionSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-31114000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-3041000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-3073000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence

Other Revenues · Life Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=cik0000726865:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:LifeSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-3110000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-302000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-307000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence

Other Revenues · Retirement Plan Services Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=cik0000726865:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesSegmentMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-3117000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-305000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-3014000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence

Fee Income · Annuities Segment

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=cik0000726865:FeeIncomeMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-30133000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-30266000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-31133000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Fee Income · Life Segment

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=cik0000726865:FeeIncomeMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:LifeSegmentMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-306000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-3011000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-315000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Fee Income · Retirement Plan Services Segment

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=cik0000726865:FeeIncomeMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesSegmentMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-3042000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-3084000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-3142000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Other Revenues · Annuities Segment

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=cik0000726865:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-3092000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-30185000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-3193000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Other Revenues · Group Protection Segment

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=cik0000726865:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GroupProtectionSegmentMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-3027000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-3032000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-315000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Other Revenues · Life Segment

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=cik0000726865:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:LifeSegmentMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-302000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-305000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-313000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Other Revenues · Retirement Plan Services Segment

Product Or Service · Statement Business Segments

Source dimensions us-gaap:ProductOrServiceAxis=cik0000726865:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesSegmentMember
PeriodValueUnitFiledEvidence
2018-04-01 – 2018-06-305000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-309000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-314000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Amortization Of Deferred Gain Arising From Reserve Changes On Business Sold Through Reinsurance Pre Tax

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AmortizationOfDeferredGainArisingFromReserveChangesOnBusinessSoldThroughReinsurancePreTaxMember
PeriodValueUnitFiledEvidence
2017-01-01 – 2017-12-311000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence
2016-01-01 – 2016-12-313000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence
2015-01-01 – 2015-12-313000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence

Annuities

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-311043000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-311045000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence

Annuities Segment

Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-314372000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2022-07-01 – 2022-09-301087000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-01-01 – 2022-09-303272000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-04-01 – 2022-06-301063000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-06-302187000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-03-311122000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2021-01-01 – 2021-12-314565000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2021-07-01 – 2021-09-301158000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-07-01 – 2021-09-301158000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-01-01 – 2021-09-303389000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-01-01 – 2021-09-303389000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-04-01 – 2021-06-301136000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-04-01 – 2021-06-301136000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-06-302233000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-01-01 – 2021-06-302233000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-03-311097000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2020-01-01 – 2020-12-314067000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2020-01-01 – 2020-12-314067000000 Unit122023-03-31 · 00:20:05.000ZOpen filing evidence
2020-07-01 – 2020-09-301082000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-07-01 – 2020-09-301082000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-01-01 – 2020-09-303055000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-01-01 – 2020-09-303055000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-04-01 – 2020-06-30951000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-06-301972000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-03-311021000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2020-01-01 – 2020-03-311021000000 Unit122021-05-10 · 19:41:30.000ZOpen filing evidence
2019-01-01 – 2019-12-314240000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2019-01-01 – 2019-12-314240000000 Unit122022-03-08 · 23:09:10.000ZOpen filing evidence
2019-07-01 – 2019-09-301024000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-07-01 – 2019-09-301024000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-01-01 – 2019-09-303177000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-01-01 – 2019-09-303177000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-04-01 – 2019-06-301065000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-06-302153000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-03-311088000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2018-01-01 – 2018-12-314025000000 RestatedUnit12021-03-09 · 21:57:43.000ZOpen filing evidence
2018-07-01 – 2018-09-301031000000 RestatedUnit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-01-01 – 2018-09-303032000000 RestatedUnit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-04-01 – 2018-06-301018000000 RestatedUnit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-06-302001000000 RestatedUnit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-03-31984000000 RestatedUnit12019-05-06 · 20:44:59.000ZOpen filing evidence
2017-01-01 – 2017-12-314034000000 Unit12020-03-14 · 00:00:26.000ZOpen filing evidence
2017-07-01 – 2017-09-30986000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-01-01 – 2017-09-302954000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-04-01 – 2017-06-30990000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-06-301969000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-03-31978000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence
2016-01-01 – 2016-12-313710000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2015-01-01 – 2015-12-313815000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence

Annuities Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-312625000000 USD2024-03-15 · 23:51:49.000ZOpen filing evidence
2022-01-01 – 2022-12-314102000000 USD2024-03-15 · 23:51:49.000ZOpen filing evidence
2021-01-01 – 2021-12-314258000000 USD2024-03-15 · 23:51:49.000ZOpen filing evidence

Annuities Segment · Transferred At Point In Time

Statement Business Segments · Timing Of Transfer Of Good Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember;us-gaap:TimingOfTransferOfGoodOrServiceAxis=us-gaap:TransferredAtPointInTimeMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-3124000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-01-01 – 2018-09-303000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-04-01 – 2018-06-301000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-303000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-312000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Annuities Segment · Transferred Over Time

Statement Business Segments · Timing Of Transfer Of Good Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:AnnuitiesSegmentMember;us-gaap:TimingOfTransferOfGoodOrServiceAxis=us-gaap:TransferredOverTimeMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-31882000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-30230000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-30678000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-04-01 – 2018-06-30224000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-30448000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-31224000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Changes In Fair Value Of Reinsurance Related Embedded Derivatives Trading Securities And Certain Mortage Loans

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:ChangesInFairValueOfReinsuranceRelatedEmbeddedDerivativesTradingSecuritiesAndCertainMortageLoansMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-30190000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2023-01-01 – 2023-09-30251000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-07-01 – 2022-09-30193000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence
2022-01-01 – 2022-09-30633000000 Unit12023-11-07 · 21:53:55.000ZOpen filing evidence

Excluded Realized Gain Loss Pre Tax Reconciling Item

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:ExcludedRealizedGainLossPreTaxReconcilingItemMember
PeriodValueUnitFiledEvidence
2017-01-01 – 2017-12-31-630000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence
2016-01-01 – 2016-12-31-690000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence
2015-01-01 – 2015-12-31-400000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence

Glb And Gdb Hedge Allowance

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GlbAndGdbHedgeAllowanceMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-31205000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-31203000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence

Glb Rider Fees Ceded To Lnbar

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GlbRiderFeesCededToLnbarMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-31-234000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-31-237000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence

Group Protection

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GroupProtectionMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-311388000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-311303000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence

Group Protection Segment

Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GroupProtectionSegmentMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-315303000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2022-07-01 – 2022-09-301332000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-01-01 – 2022-09-303958000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-04-01 – 2022-06-301323000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-06-302626000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-03-311302000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2021-01-01 – 2021-12-314994000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2021-07-01 – 2021-09-301243000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-07-01 – 2021-09-301243000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-01-01 – 2021-09-303742000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-01-01 – 2021-09-303742000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-04-01 – 2021-06-301246000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-04-01 – 2021-06-301246000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-06-302500000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-01-01 – 2021-06-302500000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-03-311253000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2020-01-01 – 2020-12-314792000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2020-01-01 – 2020-12-314792000000 Unit122023-03-31 · 00:20:05.000ZOpen filing evidence
2020-07-01 – 2020-09-301184000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-07-01 – 2020-09-301184000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-01-01 – 2020-09-303607000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-01-01 – 2020-09-303607000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-04-01 – 2020-06-301199000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-06-302423000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-03-311224000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2020-01-01 – 2020-03-311224000000 Unit122021-05-10 · 19:41:30.000ZOpen filing evidence
2019-01-01 – 2019-12-314587000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2019-01-01 – 2019-12-314587000000 Unit122022-03-08 · 23:09:10.000ZOpen filing evidence
2019-07-01 – 2019-09-301136000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-07-01 – 2019-09-301136000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-01-01 – 2019-09-303429000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-01-01 – 2019-09-303429000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-04-01 – 2019-06-301155000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-06-302293000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-03-311138000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2018-01-01 – 2018-12-313756000000 RestatedUnit12021-03-09 · 21:57:43.000ZOpen filing evidence
2018-07-01 – 2018-09-301128000000 RestatedUnit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-01-01 – 2018-09-302617000000 RestatedUnit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-04-01 – 2018-06-30937000000 RestatedUnit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-06-301490000000 RestatedUnit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-03-31552000000 RestatedUnit12019-05-06 · 20:44:59.000ZOpen filing evidence
2017-01-01 – 2017-12-312200000000 Unit12020-03-14 · 00:00:26.000ZOpen filing evidence
2017-07-01 – 2017-09-30564000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-01-01 – 2017-09-301646000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-04-01 – 2017-06-30542000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-06-301082000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-03-31541000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence
2016-01-01 – 2016-12-312129000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2015-01-01 – 2015-12-312356000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence

Group Protection Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GroupProtectionSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-315560000000 USD2024-03-15 · 23:51:49.000ZOpen filing evidence
2022-01-01 – 2022-12-315303000000 USD2024-03-15 · 23:51:49.000ZOpen filing evidence
2021-01-01 – 2021-12-314994000000 USD2024-03-15 · 23:51:49.000ZOpen filing evidence

Group Protection Segment · Transferred Over Time

Statement Business Segments · Timing Of Transfer Of Good Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:GroupProtectionSegmentMember;us-gaap:TimingOfTransferOfGoodOrServiceAxis=us-gaap:TransferredOverTimeMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-31114000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-3041000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-3073000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-04-01 – 2018-06-3027000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-3032000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-315000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Index Product Net Derivative

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:IndexProductNetDerivativeMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-31-171000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-31109000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence

Investment And Reinsurance Related Realized Gain Loss

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:InvestmentAndReinsuranceRelatedRealizedGainLossMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-31-212000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-31284000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence

Life Segment

Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:LifeSegmentMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-311638000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-12-316694000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2022-07-01 – 2022-09-301644000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-01-01 – 2022-09-305055000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-04-01 – 2022-06-301697000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-06-303411000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-03-311618000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-311715000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2021-01-01 – 2021-12-317700000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2021-07-01 – 2021-09-302225000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-07-01 – 2021-09-302225000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-01-01 – 2021-09-305956000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-01-01 – 2021-09-305956000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-04-01 – 2021-06-301911000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-04-01 – 2021-06-301911000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-06-303730000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-01-01 – 2021-06-303730000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-03-311819000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2020-01-01 – 2020-12-317086000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2020-01-01 – 2020-12-317086000000 Unit122023-03-31 · 00:20:05.000ZOpen filing evidence
2020-07-01 – 2020-09-302032000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-07-01 – 2020-09-302032000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-01-01 – 2020-09-305297000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-01-01 – 2020-09-305297000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-04-01 – 2020-06-301541000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-06-303264000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-03-311723000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2020-01-01 – 2020-03-311723000000 Unit122021-05-10 · 19:41:30.000ZOpen filing evidence
2019-01-01 – 2019-12-316999000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2019-01-01 – 2019-12-316999000000 Unit122022-03-08 · 23:09:10.000ZOpen filing evidence
2019-07-01 – 2019-09-301995000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-07-01 – 2019-09-301995000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-01-01 – 2019-09-305264000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-01-01 – 2019-09-305264000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-04-01 – 2019-06-301686000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-06-303269000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-03-311584000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2018-01-01 – 2018-12-316489000000 RestatedUnit12021-03-09 · 21:57:43.000ZOpen filing evidence
2018-07-01 – 2018-09-301647000000 RestatedUnit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-01-01 – 2018-09-304770000000 RestatedUnit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-04-01 – 2018-06-301575000000 RestatedUnit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-06-303123000000 RestatedUnit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-03-311549000000 RestatedUnit12019-05-06 · 20:44:59.000ZOpen filing evidence
2017-01-01 – 2017-12-316128000000 Unit12020-03-14 · 00:00:26.000ZOpen filing evidence
2017-07-01 – 2017-09-301515000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-01-01 – 2017-09-304537000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-04-01 – 2017-06-301539000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-06-303021000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-03-311483000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence
2016-01-01 – 2016-12-315798000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2015-01-01 – 2015-12-315484000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence

Life Segment · Transferred At Point In Time

Statement Business Segments · Timing Of Transfer Of Good Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:LifeSegmentMember;us-gaap:TimingOfTransferOfGoodOrServiceAxis=us-gaap:TransferredAtPointInTimeMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-317000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-301000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-305000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-04-01 – 2018-06-302000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-304000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-312000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Life Segment · Transferred Over Time

Statement Business Segments · Timing Of Transfer Of Good Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:LifeSegmentMember;us-gaap:TimingOfTransferOfGoodOrServiceAxis=us-gaap:TransferredOverTimeMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-3125000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-307000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-3019000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-04-01 – 2018-06-306000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-3012000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-316000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Other Operations

Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:OtherOperationsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-3138000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-12-31133000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2022-07-01 – 2022-09-3031000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-01-01 – 2022-09-3093000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-04-01 – 2022-06-3029000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-06-3062000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-03-3137000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-3133000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2021-01-01 – 2021-12-31158000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2021-07-01 – 2021-09-3036000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-07-01 – 2021-09-3036000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-01-01 – 2021-09-30109000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-01-01 – 2021-09-30109000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-04-01 – 2021-06-3038000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-04-01 – 2021-06-3038000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-06-3073000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-01-01 – 2021-06-3073000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-03-3135000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2020-01-01 – 2020-12-31166000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2020-01-01 – 2020-12-31166000000 Unit122023-03-31 · 00:20:05.000ZOpen filing evidence
2020-07-01 – 2020-09-3037000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-07-01 – 2020-09-3037000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-01-01 – 2020-09-30115000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-01-01 – 2020-09-30115000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-04-01 – 2020-06-3044000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-06-3079000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-03-3135000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2020-01-01 – 2020-03-3135000000 Unit122021-05-10 · 19:41:30.000ZOpen filing evidence
2019-01-01 – 2019-12-31199000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2019-01-01 – 2019-12-31199000000 Unit122022-03-08 · 23:09:10.000ZOpen filing evidence
2019-07-01 – 2019-09-3047000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-07-01 – 2019-09-3047000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-01-01 – 2019-09-30152000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-01-01 – 2019-09-30152000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-04-01 – 2019-06-3050000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-06-30106000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-03-3156000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2018-01-01 – 2018-12-31209000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2018-07-01 – 2018-09-3050000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-01-01 – 2018-09-30158000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-04-01 – 2018-06-3048000000 Unit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-06-30106000000 Unit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-03-3158000000 Unit12019-05-06 · 20:44:59.000ZOpen filing evidence
2017-01-01 – 2017-12-31263000000 Unit12020-03-14 · 00:00:26.000ZOpen filing evidence
2017-07-01 – 2017-09-3060000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-01-01 – 2017-09-30204000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-04-01 – 2017-06-3064000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-06-30143000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-03-3178000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence
2016-01-01 – 2016-12-31301000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2015-01-01 – 2015-12-31335000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence

Retirement Plan Services

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-31322000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence
2022-01-01 – 2022-03-31313000000 Unit12023-05-15 · 20:21:51.000ZOpen filing evidence

Retirement Plan Services Segment

Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesSegmentMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-311258000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2022-07-01 – 2022-09-30312000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-01-01 – 2022-09-30937000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2022-04-01 – 2022-06-30311000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-06-30624000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2022-01-01 – 2022-03-31314000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2021-01-01 – 2021-12-311307000000 RestatedUnit122023-03-31 · 00:20:05.000ZOpen filing evidence
2021-07-01 – 2021-09-30325000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-07-01 – 2021-09-30325000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-01-01 – 2021-09-30977000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2021-01-01 – 2021-09-30977000000 Unit122022-11-07 · 23:48:18.000ZOpen filing evidence
2021-04-01 – 2021-06-30329000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-04-01 – 2021-06-30329000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-06-30651000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2021-01-01 – 2021-06-30651000000 Unit122022-08-08 · 23:45:00.000ZOpen filing evidence
2021-01-01 – 2021-03-31323000000 Unit122022-05-09 · 21:05:00.000ZOpen filing evidence
2020-01-01 – 2020-12-311197000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2020-01-01 – 2020-12-311197000000 Unit122023-03-31 · 00:20:05.000ZOpen filing evidence
2020-07-01 – 2020-09-30307000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-07-01 – 2020-09-30307000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-01-01 – 2020-09-30878000000 Unit12021-11-08 · 23:25:20.000ZOpen filing evidence
2020-01-01 – 2020-09-30878000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2020-04-01 – 2020-06-30278000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-06-30571000000 Unit12021-08-09 · 20:34:36.000ZOpen filing evidence
2020-01-01 – 2020-03-31293000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2020-01-01 – 2020-03-31293000000 Unit122021-05-10 · 19:41:30.000ZOpen filing evidence
2019-01-01 – 2019-12-311186000000 Unit12021-03-09 · 21:57:43.000ZOpen filing evidence
2019-01-01 – 2019-12-311186000000 Unit122022-03-08 · 23:09:10.000ZOpen filing evidence
2019-07-01 – 2019-09-30293000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-07-01 – 2019-09-30293000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-01-01 – 2019-09-30877000000 Unit12019-11-04 · 16:29:51.000ZOpen filing evidence
2019-01-01 – 2019-09-30877000000 Unit122020-11-09 · 22:54:38.000ZOpen filing evidence
2019-04-01 – 2019-06-30296000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-06-30585000000 Unit12020-08-10 · 22:58:19.000ZOpen filing evidence
2019-01-01 – 2019-03-31289000000 Unit12020-05-12 · 21:10:13.000ZOpen filing evidence
2018-01-01 – 2018-12-311164000000 RestatedUnit12021-03-09 · 21:57:43.000ZOpen filing evidence
2018-07-01 – 2018-09-30290000000 RestatedUnit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-01-01 – 2018-09-30867000000 RestatedUnit12019-11-04 · 16:29:51.000ZOpen filing evidence
2018-04-01 – 2018-06-30289000000 RestatedUnit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-06-30577000000 RestatedUnit12019-08-05 · 15:05:20.000ZOpen filing evidence
2018-01-01 – 2018-03-31288000000 RestatedUnit12019-05-06 · 20:44:59.000ZOpen filing evidence
2017-01-01 – 2017-12-311152000000 Unit12020-03-14 · 00:00:26.000ZOpen filing evidence
2017-07-01 – 2017-09-30288000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-01-01 – 2017-09-30853000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2017-04-01 – 2017-06-30286000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-06-30565000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2017-01-01 – 2017-03-31279000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence
2016-01-01 – 2016-12-311092000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2015-01-01 – 2015-12-311090000000 Unit12018-03-13 · 21:37:52.000ZOpen filing evidence

Retirement Plan Services Segment · Transferred At Point In Time

Statement Business Segments · Timing Of Transfer Of Good Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesSegmentMember;us-gaap:TimingOfTransferOfGoodOrServiceAxis=us-gaap:TransferredAtPointInTimeMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-315000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-301000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-304000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-04-01 – 2018-06-302000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-303000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-311000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence

Retirement Plan Services Segment · Transferred Over Time

Statement Business Segments · Timing Of Transfer Of Good Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=cik0000726865:RetirementPlanServicesSegmentMember;us-gaap:TimingOfTransferOfGoodOrServiceAxis=us-gaap:TransferredOverTimeMember
PeriodValueUnitFiledEvidence
2018-01-01 – 2018-12-31179000000 Unit12019-03-13 · 23:55:07.000ZOpen filing evidence
2018-07-01 – 2018-09-3046000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-01-01 – 2018-09-30136000000 Unit12018-11-06 · 19:55:31.000ZOpen filing evidence
2018-04-01 – 2018-06-3045000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-06-3090000000 Unit12018-08-07 · 19:01:37.000ZOpen filing evidence
2018-01-01 – 2018-03-3145000000 Unit12018-05-09 · 17:39:55.000ZOpen filing evidence