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Investments - Investment Related Gains (Losses) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Gain (Loss) on Securities [Line Items]
Proceeds from Sale of Debt Securities, Available-for-sale	$ 9,421	$ 17,116
AFS securities
Gross realized gains on investment activity	1,337	936	$ 602
Gross realized losses on investment activity	(2,151)	(633)	(415)
Net realized investment gains (losses) on AFS securities	(814)	303	187
Net recognized investment gains (losses) on trading securities	(424)	(70)	33
Net recognized investment gains (losses) on equity securities	(150)	237	(218)
Total gains (losses)	(3,204)	836	274
Derivative gains (losses)	(9,173)	3,525	3,430
Other gains (losses)	1,056	167	(49)
Proceeds from sale of available-for-sale securities			6,023
Provision for Loan, Lease, and Other Losses	(227)	53	(96)
Gain (Loss) on Investments	(12,706)	4,215	3,287
Related Party
AFS securities
Debt Securities, Trading, Unrealized Gain (Loss)	1	56	(37)
Equity Securities, FV-NI, Unrealized Gain (Loss)	0	9	0
Gain (Loss) on Investments	(1,670)	221	702
Mortgage loans
AFS securities
Total gains (losses)	(2,974)	0	0
Investments, excluding investments in related party
AFS securities
Debt Securities, Trading, Unrealized Gain (Loss)	(415)	(78)	130
Equity Securities, FV-NI, Unrealized Gain (Loss)	$ (146)	$ 213	$ (9)

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