Purchased Loans (RBC Acquisition - Purchase Loan Balances) (Details) (RBC Bank Usa Acquisition [Member], USD $) In Millions, unless otherwise specified	Mar. 02, 2012
Financing Receivable, Impaired [Line Items]
Outstanding Balance	$ 16,700
Purchased Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	1,998	[1],[2]
Outstanding Balance	3,011	[2]
Purchased Impaired Loans [Member] | Total commercial lending [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	927	[2]
Outstanding Balance	1,582	[2]
Purchased Impaired Loans [Member] | Total consumer lending [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	1,071	[2]
Outstanding Balance	1,429	[2]
Other Purchased Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	12,512	[2]
Outstanding Balance	13,663	[2]
Other Purchased Loans [Member] | Total commercial lending [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	8,141	[2]
Outstanding Balance	8,730	[2]
Other Purchased Loans [Member] | Total consumer lending [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	4,371	[2]
Outstanding Balance	4,933	[2]
Commercial [Member] | Purchased Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	330	[2]
Outstanding Balance	564	[2]
Commercial [Member] | Other Purchased Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	5,954	[2]
Outstanding Balance	6,298	[2]
Commercial Real Estate [Member] | Purchased Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	597	[2]
Outstanding Balance	1,018	[2]
Commercial Real Estate [Member] | Other Purchased Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	2,101	[2]
Outstanding Balance	2,340	[2]
Residential Real Estate [Member] | Purchased Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	896	[2]
Outstanding Balance	1,214	[2]
Residential Real Estate [Member] | Other Purchased Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	1,168	[2]
Outstanding Balance	1,202	[2]
Equipment Lease Financing [Member] | Other Purchased Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	86	[2]
Outstanding Balance	92	[2]
Credit Card And Other Consumer [Member] | Other Purchased Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	376	[2]
Outstanding Balance	385	[2]
Home Equity [Member] | Purchased Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	175	[2]
Outstanding Balance	215	[2]
Home Equity [Member] | Other Purchased Loans [Member]
Financing Receivable, Impaired [Line Items]
Fair Value	2,827	[2]
Outstanding Balance	$ 3,346	[2]

[1] The table above has been updated to reflect certain immaterial adjustments.

[2] The table above has been updated to reflect certain immaterial adjustments and reclassifications between commercial and commercial real estate.