Equity - Schedule of Other Comprehensive Income (Loss) Reclassification Adjustments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Other Comprehensive Income (Loss) Reclassification Adjustments
Other comprehensive income	$ 916	$ 6,694	$ 1,552	$ 5,637
AOCI Including Portion Attributable to Noncontrolling Interest
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	754	(315)	1,004	(1,750)
Less: Reclassification adjustments included in net income	(158)	(7,049)	(428)	(7,499)
Total other comprehensive income (loss), before of income tax expense (benefit)	912	6,734	1,432	5,749
Less: Income tax expense (benefit)	(4)	40	(120)	112
Other comprehensive income	916	6,694	1,552	5,637
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 period	(7)	(13)	(3)	53
Less: Reclassification adjustments included in net income	0	(36)	0	(42)
Total other comprehensive income (loss), before of income tax expense (benefit)	(7)	23	(3)	95
Less: Income tax expense (benefit)	(1)	(3)	(1)	12
Other comprehensive income	(6)	26	(2)	83
Unrealized Appreciation (Depreciation) of All Other Investments
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	352	(811)	414	(2,643)
Less: Reclassification adjustments included in net income	(151)	(8,346)	(413)	(8,783)
Total other comprehensive income (loss), before of income tax expense (benefit)	503	7,535	827	6,140
Less: Income tax expense (benefit)	11	(52)	(90)	(157)
Other comprehensive income	492	7,587	917	6,297
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 period	0	159	0	130
Less: Reclassification adjustments included in net income	0	(330)	0	(330)
Total other comprehensive income (loss), before of income tax expense (benefit)	0	489	0	460
Less: Income tax expense (benefit)	0	34	0	28
Other comprehensive income	0	455	0	432
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 period	0	262	9	959
Less: Reclassification adjustments included in net income	0	1,583	0	1,583
Total other comprehensive income (loss), before of income tax expense (benefit)	0	(1,321)	9	(624)
Less: Income tax expense (benefit)	(1)	72	2	224
Other comprehensive income	1	(1,393)	7	(848)
Foreign Currency Translation Adjustments
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	414	85	589	(254)
Less: Reclassification adjustments included in net income	0	88	0	88
Total other comprehensive income (loss), before of income tax expense (benefit)	414	(3)	589	(342)
Less: Income tax expense (benefit)	(15)	(13)	(34)	1
Other comprehensive income	429	10	623	(343)
Retirement Plan Liabilities Adjustment
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	(5)	3	(5)	5
Less: Reclassification adjustments included in net income	(7)	(8)	(15)	(15)
Total other comprehensive income (loss), before of income tax expense (benefit)	2	11	10	20
Less: Income tax expense (benefit)	2	2	3	4
Other comprehensive income	$ 0	$ 9	$ 7	$ 16