Equity - Schedule of Other Comprehensive Income (Loss) Reclassification Adjustments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Other Comprehensive Income (Loss) Reclassification Adjustments
Other comprehensive income (loss)	$ 6,694	$ (1,738)	$ 5,637	$ 2,175
Noncontrolling interests
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	(315)	(2,305)	(1,750)	1,821
Less: Reclassification adjustments included in net income	(7,049)	(349)	(7,499)	(810)
Total other comprehensive income (loss), before of income tax expense (benefit)	6,734	(1,956)	5,749	2,631
Less: Income tax expense (benefit)	40	(218)	112	456
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	(13)	97	53	90
Less: Reclassification adjustments included in net income	(36)	(7)	(42)	(23)
Total other comprehensive income (loss), before of income tax expense (benefit)	23	104	95	113
Less: Income tax expense (benefit)	(3)	20	12	23
Other comprehensive income (loss)	26	84	83	90
Unrealized Appreciation (Depreciation) of All Other Investments
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	(811)	(2,739)	(2,643)	1,827
Less: Reclassification adjustments included in net income	(8,346)	(334)	(8,783)	(770)
Total other comprehensive income (loss), before of income tax expense (benefit)	7,535	(2,405)	6,140	2,597
Less: Income tax expense (benefit)	(52)	(407)	(157)	343
Other comprehensive income (loss)	7,587	(1,998)	6,297	2,254
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	159	(241)	130	(146)
Less: Reclassification adjustments included in net income	(330)	0	(330)	0
Total other comprehensive income (loss), before of income tax expense (benefit)	489	(241)	460	(146)
Less: Income tax expense (benefit)	34	(51)	28	(31)
Other comprehensive income (loss)	455	(190)	432	(115)
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	262	531	959	4
Less: Reclassification adjustments included in net income	1,583	0	1,583	0
Total other comprehensive income (loss), before of income tax expense (benefit)	(1,321)	531	(624)	4
Less: Income tax expense (benefit)	72	158	224	51
Other comprehensive income (loss)	(1,393)	373	(848)	(47)
Foreign Currency Translation Adjustments
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	85	(25)	(254)	(44)
Less: Reclassification adjustments included in net income	88	0	88	0
Total other comprehensive income (loss), before of income tax expense (benefit)	(3)	(25)	(342)	(44)
Less: Income tax expense (benefit)	(13)	34	1	43
Other comprehensive income (loss)	10	(59)	(343)	(87)
Retirement Plan Liabilities Adjustment
Other Comprehensive Income (Loss) Reclassification Adjustments
Unrealized change arising during period	3	72	5	90
Less: Reclassification adjustments included in net income	(8)	(8)	(15)	(17)
Total other comprehensive income (loss), before of income tax expense (benefit)	11	80	20	107
Less: Income tax expense (benefit)	2	28	4	27
Other comprehensive income (loss)	$ 9	$ 52	$ 16	$ 80