Discontinued Operations and Disposal Groups Sale (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	May 06, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	$ 12,562
Cash and due from banks	93					$ 72
Interest-bearing deposits with banks	1,952					342
Premises and equipment	58					72
Goodwill	3,743					3,745
CDI and other intangible assets	1,227					1,251
Other assets	2,873					2,173
Assets of discontinued operations	9,946	$ 0		$ 0		7,655
Other liabilities	4,090					3,539
Liabilities of discontinued operations	4,090	0		0		$ 3,539
Disposal Group, Including Discontinued Operation, Net assets	5,856
Disposal Group, Including Discontinued Operation, Noncontrolling interest	$ 197	(197)		(197)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax		$ 6,903	$ 0	6,903	$ 0
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation				(2,089)
Gain on sale of TIH, net of tax				$ 4,814	$ 0