Supplemental information to the Consolidated Statement of Cash Flows (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Supplemental Cash Flow Information [Abstract]
Transfers from loans to other assets for other real estate owned	$ 1	$ 1
Change in assets of consolidated investment management funds	248	18
Change in liabilities of consolidated investment management funds	2	2
Change in nonredeemable noncontrolling interests of consolidated investment management funds	189	130
Securities purchased not settled	126	531
Securities sold not settled	0	29
Available-for-sale securities transferred to held-to-maturity securities	6,067	11,028
Premises and equipment/capitalized software funded by finance lease obligations	0	11
Premises and equipment/operating lease obligations	$ 177	$ 72