Litigation, Other Commitments and Contingencies, and Disclosures about Guarantees, New Markets Tax Credits (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Aug. 31, 2008
Litigation, Other Commitments and Contingencies, and Disclosures about Guarantees [Abstract]
Equity contributions - Total	$ 65,241,000
New Markets Tax Credits [Abstract]
Membership interest in U.S Bank New Markets Tax Credit Fund (in hundredths)		99.90%
Equity contributions to be made to the Fund	283,600,000
Net tax benefits to be received from the Fund	301,900,000
Difference between equity contributions and total benefits received will be recognized over the life of the Fund as net tax benefits	18,300,000
Future equity contributions [Abstract]
2014	47,434,000
2015	11,195,000
2016	3,698,000
2017	2,914,000
Total	65,241,000
Equity contributions with an imputed interest rate [Abstract]
Less: unamortized discount	3,930,000
Total	61,311,000
Equity contributions - imputed interst rate	6.00%
Tax benefits in excess of capital contributions	73,800,000
Tax benefits not utilized	$ 113,600,000
Period (in years) over which gross investment amortization expense is recognized	9 years
Remaining period (in years) of recognition of gross investment amortization expense	4 years