Equity - Schedule of Other Comprehensive Income (Loss) Reclassification Adjustments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Other Comprehensive Income (Loss) Reclassification Adjustments
Less: Income tax expense (benefit)	$ (40)	$ 346	$ 832
Other comprehensive income	2,112	6,105	5,940
AOCI Including Portion Attributable to Noncontrolling Interest
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during year	1,449	(1,413)	5,681
Less: Reclassification adjustments included in net income	(623)	(7,864)	(1,091)
Total other comprehensive income (loss), before of income tax expense (benefit)	2,072	6,451	6,772
Less: Income tax expense (benefit)	(40)	346	832
Other comprehensive income	2,112	6,105	5,940
Unrealized Appreciation (Depreciation) of Fixed Maturity Securities on Which Allowance for Credit Losses Was Taken
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during year	0	95	(6)
Less: Reclassification adjustments included in net income	0	(42)	(26)
Total other comprehensive income (loss), before of income tax expense (benefit)	0	137	20
Less: Income tax expense (benefit)	(1)	20	6
Other comprehensive income	1	117	14
Unrealized Appreciation (Depreciation) of All Other Investments
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during year	854	(2,211)	7,172
Less: Reclassification adjustments included in net income	(593)	(9,132)	(1,036)
Total other comprehensive income (loss), before of income tax expense (benefit)	1,447	6,921	8,208
Less: Income tax expense (benefit)	(48)	70	1,074
Other comprehensive income	1,495	6,851	7,134
Change in Fair Value of Market Risk Benefits Attributable to Changes in Our Own Credit Risk
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during year	0	130	(695)
Less: Reclassification adjustments included in net income	0	(330)	0
Total other comprehensive income (loss), before of income tax expense (benefit)	0	460	(695)
Less: Income tax expense (benefit)	0	28	(151)
Other comprehensive income	0	432	(544)
Change in the discount rates used to measure traditional and limited payment long-duration insurance contracts
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during year	28	946	(1,045)
Less: Reclassification adjustments included in net income	0	1,583	0
Total other comprehensive income (loss), before of income tax expense (benefit)	28	(637)	(1,045)
Less: Income tax expense (benefit)	9	165	(174)
Other comprehensive income	19	(802)	(871)
Foreign Currency Translation Adjustments
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during year	518	(407)	137
Less: Reclassification adjustments included in net income	0	88	0
Total other comprehensive income (loss), before of income tax expense (benefit)	518	(495)	137
Less: Income tax expense (benefit)	(22)	45	35
Other comprehensive income	540	(540)	102
Retirement Plan Liabilities Adjustment
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during year	49	34	118
Less: Reclassification adjustments included in net income	(30)	(31)	(29)
Total other comprehensive income (loss), before of income tax expense (benefit)	79	65	147
Less: Income tax expense (benefit)	22	18	42
Other comprehensive income	$ 57	$ 47	$ 105