Fair Value Measurement - Level 3 Analysis (Details) - Recurring - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Level 3 Analysis - Supplemental Data [Abstract]
Assets fair value	$ 1,105,603	$ 1,154,549
MSRs
Level 3 Analysis - Supplemental Data [Abstract]
Increase (decrease) in level 3 assets	2,500
Derivative receivables
Level 3 Analysis - Supplemental Data [Abstract]
Increase (decrease) in level 3 assets	3,400
Level 3
Level 3 Analysis - Supplemental Data [Abstract]
Assets fair value	23,626	$ 17,479
Increase (decrease) in level 3 assets	$ 6,100