Loans and Leases Loans and Leases (Components Of The Net Investment In Leveraged Leases) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Loans and Leases Receivable Disclosure [Abstract]
Net rental income receivable	$ 1,519	$ 1,671
Estimated residual value	110	110
Unearned income	(465)	(527)
Investment in leveraged lease financing	1,164	1,254
Less related deferred income tax liabilities	(370)	(397)
Net investment in leveraged lease financing	$ 794	$ 857

Leveraged leases net investment in leveraged leases disclosure unearned income.

No definition available.

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- Definition

The net investment in arrangements meeting the criteria to be classified as leveraged.

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- Definition

Taxes arising from arrangements meeting the criteria for classification as leveraged leases due to timing differences between accounting and tax income recognition.

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The net investment in arrangements meeting the criteria for classification as leveraged leases including deferred taxes.

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- Definition

This element represents leveraged lease rentals receivable, net of that portion of the rental applicable to principal and interest on the nonrecourse debt.

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The estimate of the value of the leased asset at the end of the lease term.

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