Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Goodwill [Line Items]
Goodwill	$ 458	[1]	$ 458	[1]	$ 1,242
Accumulated impairment loss	1,819		1,819
Goodwill impairment charge	$ 0		784		365
Wealth and Personal Banking
Goodwill [Line Items]
Goodwill					737
Goodwill impairment charge			$ 784		$ 365

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") at December 31, 2021 and 2020. Assets and liabilities exclude intercompany balances that eliminate in consolidation. See Note 27, "Variable Interest Entities," for additional information. At December 31,20212020(in millions)AssetsLoans$46 $10 Other assets55 79 Total assets$101 $89 LiabilitiesInterest, taxes and other liabilities$9 $10 Total liabilities$9 $10