Insurance Liabilities (Policyholder Account Balances) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Policyholder Account Balance [Line Items]
Interest credited to policyholder account balances	$ 550	$ 420	$ 1,549	$ 1,282
Policyholder Account Balance, Ending Balance	86,836	77,474	86,836	77,474
Universal Life Insurance
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			1,980	2,100
Premiums and deposits			166	154
Surrenders and withdrawals			(44)	(114)
Benefit payments			(36)	(48)
Net transfers from (to) separate account			27	13
Interest credited to policyholder account balances			61	17
Policy charges			(143)	(150)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 2,011	$ 1,972	$ 2,011	$ 1,972
Weighted-average crediting rate (2)	3.06%	0.84%	3.06%	0.84%
Variable Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 4,111	$ 4,664
Premiums and deposits			56	63
Surrenders and withdrawals			(468)	(455)
Benefit payments			(68)	(79)
Net transfers from (to) separate account			78	6
Interest credited to policyholder account balances			80	94
Policy charges			(16)	(18)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 3,773	$ 4,275	$ 3,773	$ 4,275
Weighted-average crediting rate (2)	2.03%	2.10%	2.03%	2.10%
Index-linked Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 41,627	$ 33,897
Premiums and deposits			6,272	5,314
Surrenders and withdrawals			(3,935)	(2,588)
Benefit payments			(243)	(177)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			438	299
Policy charges			(14)	(6)
Changes related to embedded derivatives			3,669	1,880
Policyholder Account Balance, Ending Balance	$ 47,814	$ 38,619	$ 47,814	$ 38,619
Weighted-average crediting rate (2)	1.31%	1.02%	1.31%	1.02%
Fixed Rate Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 14,672	$ 14,274
Premiums and deposits			1,027	1,983
Surrenders and withdrawals			(982)	(1,518)
Benefit payments			(258)	(285)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			424	357
Policy charges			0	0
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 14,883	$ 14,811	$ 14,883	$ 14,811
Weighted-average crediting rate (2)	2.86%	2.43%	2.86%	2.43%
ULSG
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 5,052	$ 5,307
Premiums and deposits			486	501
Surrenders and withdrawals			(15)	(17)
Benefit payments			(53)	(67)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			123	165
Policy charges			(745)	(764)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 4,848	$ 5,125	$ 4,848	$ 5,125
Weighted-average crediting rate (2)	2.48%	3.17%	2.48%	3.17%
Company-Owned Life Insurance
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 653	$ 641
Premiums and deposits			0	0
Surrenders and withdrawals			0	0
Benefit payments			(7)	(6)
Net transfers from (to) separate account			5	0
Interest credited to policyholder account balances			22	22
Policy charges			(6)	(7)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 667	$ 650	$ 667	$ 650
Weighted-average crediting rate (2)	3.10%	3.41%	3.10%	3.41%