Loans and Leases (Net Loans) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	$ 16,114	$ 13,486
Allowance for loan losses	(30)	(28)
Loans and leases, net of allowance for loan losses	16,084	13,458
Institutional
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	15,880	13,277
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	234	209
U.S. \| Institutional
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment funds	10,000	8,695
Commercial and financial	1,895	1,372
Purchased receivables	202	217
Lease financing	337	339
U.S. \| Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial real estate	234	209
Non-U.S. \| Institutional
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investment funds	2,310	1,718
Commercial and financial	363	154
Purchased receivables	20	26
Lease financing	$ 753	$ 756

Loans Receivable Investment Funds

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- Definition

Purchased Receivables

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Amount before allowance of commercial leases and leveraged lease transactions where the entity is long-term creditor. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Glossary Leveraged Lease

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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-Number Topic 6

-Section L

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Amount before allowance of loans issued to financial institutions, including, but not limited to, real estate investment trusts, mortgage companies, and banks. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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