Other Assets - Equity Method Investments - Balances (Details) - Investment Management - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Equity Method Investments
Investments	$ 1,881		$ 1,881		$ 2,214
Income (loss)	$ 21	$ 24	$ 44	$ 51

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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