Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Millions		12 Months Ended
	Jan. 01, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash dividends declared
Accounting Standards Update [Extensible List]					Accounting Standards Update 2016-13 [Member]
Common stock, dividend per share (in dollars per share)		$ 2.08	$ 1.72	$ 1.72
Impact of new accounting guidance, tax	$ 288
Period of Adoption Adjustment
Cash dividends declared
Impact of new accounting guidance, net of tax	$ 1,170
Series B Preferred Stock
Cash dividends declared
Preferred stock, dividend per share (in dollars per share)			36,419.41	45,807.57
Series C Preferred Stock
Cash dividends declared
Preferred stock, dividend per share (in dollars per share)			26,317.47	$ 52,919.91
Series D Preferred Stock
Cash dividends declared
Preferred stock, dividend per share (in dollars per share)		$ 35,993.05	$ 13,213.89