Other Assets - Equity Method Investments - Balances (Details) - Investment Management - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Equity Method Investments
Investments	$ 1,965		$ 1,965		$ 2,214
Income (loss)	$ 17	$ 51	$ 23	$ 27

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

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