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Loans and Leases - TDRs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 46	$ 47
Accruing		16
Non- Accrual		31
Mortgage Loans: | Multi-family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total		7
Accruing		0
Non- Accrual		7
Mortgage Loans: | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 44	35
Accruing		16
Non- Accrual		19
Other Loans: | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total		5
Accruing		0
Non- Accrual		5
Other Loans: | Taxi medallion-related loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total		$ 5

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- Definition

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- Definition

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- Definition

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