Label	Element	Value
SEC Schedule, 12-09, Allowance, Loan and Lease Loss [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	$ (63,000,000)
SEC Schedule, 12-09, Allowance, Loan and Lease Loss [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	0
SEC Schedule, 12-09, Allowance, Loan and Lease Loss [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Credit Card Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	(63,000,000)
SEC Schedule, 12-09, Allowance, Loan and Lease Loss [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	$ 0