Loans Held for Sale - Summary (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	[1]	$ 339	$ 354
Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale		339	349
Commercial loans | Global banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale		339	349
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale		0	5
Consumer loans | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale		$ 0	$ 5

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") at December 31, 2023 and 2022. Assets and liabilities exclude intercompany balances that eliminate in consolidation. See Note 27, "Variable Interest Entities," for additional information. At December 31,20232022(in millions)AssetsLoans, net$— $162 Other assets23 44 Total assets$23 $206 LiabilitiesInterest, taxes and other liabilities$17 $22 Total liabilities$17 $22