Condensed Financial Information (Parent Company) (Condensed Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments:
Estimated Fair Value of Fixed Maturity Securities AFS	$ 276,780	$ 340,274
Other invested assets, at estimated fair value	20,038	18,655
Total investments	433,293	494,821
Cash and cash equivalents	20,195	20,047
Accrued investment income	3,446	3,185
Other assets	11,026	11,426
Total assets	666,611	759,708
Liabilities
Payables for collateral under derivatives transactions	20,937	31,920
Junior subordinated debt securities	3,158	3,156
Other liabilities	25,980	22,538
Total liabilities	639,324	691,959
Stockholders’ Equity
Preferred stock, par value $0.01 per share; $3,905 aggregate liquidation preference	0	0
Common stock, par value $0.01 per share; 3,000,000,000 shares authorized; 1,189,831,471 and 1,186,540,473 shares issued, respectively; 779,098,414 and 825,540,267 shares outstanding, respectively	12	12
Additional paid-in capital	33,616	33,511
Retained earnings	41,953	41,197
Treasury stock, at cost; 410,733,057 and 361,000,206 shares, respectively	(21,458)	(18,157)
Accumulated other comprehensive income (loss)	(27,083)	10,919	$ 18,072	$ 13,052
Total stockholders’ equity	27,040	67,482
Total liabilities and stockholders' equity	$ 666,611	$ 759,708
Common stock, Shares Authorized	3,000,000,000	3,000,000,000
Parent Company
Investments:
Estimated Fair Value of Fixed Maturity Securities AFS	$ 3,729	$ 2,745
Other invested assets, at estimated fair value	376	314
Total investments	4,105	3,059
Cash and cash equivalents	1,290	1,961	$ 441	$ 377
Accrued investment income	20	4
Investment in subsidiaries	39,895	80,165
Loans to subsidiaries	95	35
Other assets	724	798
Total assets	46,129	86,022
Liabilities
Payables for collateral under derivatives transactions	154	153
Long-term debt — unaffiliated	13,588	12,814
Long-term debt — affiliated	1,676	1,884
Junior subordinated debt securities	2,465	2,463
Other liabilities	1,206	1,226
Total liabilities	19,089	18,540
Stockholders’ Equity
Preferred stock, par value $0.01 per share; $3,905 aggregate liquidation preference	0	0
Common stock, par value $0.01 per share; 3,000,000,000 shares authorized; 1,189,831,471 and 1,186,540,473 shares issued, respectively; 779,098,414 and 825,540,267 shares outstanding, respectively	12	12
Additional paid-in capital	33,616	33,511
Retained earnings	41,953	41,197
Treasury stock, at cost; 410,733,057 and 361,000,206 shares, respectively	(21,458)	(18,157)
Accumulated other comprehensive income (loss)	(27,083)	10,919
Total stockholders’ equity	27,040	67,482
Total liabilities and stockholders' equity	$ 46,129	$ 86,022
Common stock, Shares Authorized	3,000,000,000	3,000,000,000