Insurance Liabilities (Policyholder Account Balances) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Policyholder Account Balance [Line Items]
Interest credited to policyholder account balances	$ 531	$ 537	$ 1,024	$ 1,098
Policyholder Account Balance, Ending Balance	89,076	88,046	89,076	88,046
Universal Life Insurance
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			2,627	2,590
Premiums and deposits			129	130
Surrenders and withdrawals			(37)	(52)
Benefit payments			(28)	(35)
Net transfers from (to) separate account			13	15
Interest credited to policyholder account balances			50	53
Policy charges			(103)	(96)
Changes related to embedded derivatives			2	0
Policyholder Account Balance, Ending Balance	$ 2,653	$ 2,605	$ 2,653	$ 2,605
Weighted-average crediting rate (2)	1.90%	2.04%	1.90%	2.04%
Variable Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 3,403	$ 3,833
Premiums and deposits			25	26
Surrenders and withdrawals			(253)	(295)
Benefit payments			(42)	(44)
Net transfers from (to) separate account			59	66
Interest credited to policyholder account balances			46	50
Policy charges			(10)	(11)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 3,228	$ 3,625	$ 3,228	$ 3,625
Weighted-average crediting rate (2)	1.39%	1.34%	1.39%	1.34%
Index-linked Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 52,594	$ 48,605
Premiums and deposits			4,143	4,001
Surrenders and withdrawals			(4,606)	(3,547)
Benefit payments			(231)	(173)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			391	378
Policy charges			(23)	(17)
Changes related to embedded derivatives			2,523	990
Policyholder Account Balance, Ending Balance	$ 54,791	$ 50,237	$ 54,791	$ 50,237
Weighted-average crediting rate (2)	0.95%	0.96%	0.95%	0.96%
Fixed Rate Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 13,252	$ 14,665
Premiums and deposits			123	520
Surrenders and withdrawals			(688)	(666)
Benefit payments			(184)	(182)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			266	282
Policy charges			0	0
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 12,769	$ 14,619	$ 12,769	$ 14,619
Weighted-average crediting rate (2)	2.05%	1.93%	2.05%	1.93%
ULSG
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 4,461	$ 4,779
Premiums and deposits			302	313
Surrenders and withdrawals			(12)	(13)
Benefit payments			(29)	(49)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			73	77
Policy charges			(474)	(488)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 4,321	$ 4,619	$ 4,321	$ 4,619
Weighted-average crediting rate (2)	1.66%	1.64%	1.66%	1.64%
Company-Owned Life Insurance
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 646	$ 1,166
Premiums and deposits			0	0
Surrenders and withdrawals			0	0
Benefit payments			(7)	(4)
Net transfers from (to) separate account			0	(525)
Interest credited to policyholder account balances			15	12
Policy charges			(5)	(4)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 649	$ 645	$ 649	$ 645
Weighted-average crediting rate (2)	2.32%	1.45%	2.32%	1.45%

Amount of interest expense for allocation to policyholder account balance.

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