Guarantees and Contingent Liabilities (Tables)

12 Months Ended

Dec. 31, 2011

Guarantees and Contingent Liabilities [Abstract]

Summary of contract or notional amounts of commitments to extend credit and letters of credit

	Term
(Dollars in Millions)	Less Than One Year		Greater Than One Year		Total
Commitments to extend credit
Commercial and commercial real estate	$	19,632	$	64,394	$	84,026
Corporate and purchasing cards (a)		17,713		–		17,713
Residential mortgages		106		55		161
Retail credit cards (a)		64,411		545		64,956
Other retail		9,739		16,411		26,150
Covered		72		1,033		1,105
Letters of credit
Standby		7,202		11,997		19,199
Commercial		396		24		420

(a) Primarily cancelable at the Company’s discretion.

Summary of lease commitments

(Dollars in Millions)	Capitalized Leases		Operating Leases
2012		$10		$   222
2013		9		202
2014		7		172
2015		6		141
2016		6		107
Thereafter		27		443
Total minimum lease payments		65		$1,287
Less amount representing interest		25
Present value of net minimum lease payments		$40

Company's representation and warranty reserve

Year ended December 31 (Dollars in Millions)	2011			2010			2009
Balance at beginning of period	$	180		$	72		$	12
Net realized losses		(137	)		(93	)		(18	)
Additions to reserve		117			201			78
Balance at end of period	$	160		$	180		$	72