Loans - By Portfolio Segment (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Loan balances by portfolio segment:
Retained	$ 844,195	$ 832,792	$ 756,971
Held-for-sale	1,195	1,646
At fair value	1,923	2,861
Total	847,313	837,299
Consumer, excluding credit card
Loan balances by portfolio segment:
Retained	353,871	344,355	304,917
Held-for-sale	321	466
At fair value	0	0
Total	354,192	344,821
Credit card
Loan balances by portfolio segment:
Retained	126,012	131,387	120,835
Held-for-sale	78	76
At fair value	0	0
Total	126,090	131,463
Wholesale
Loan balances by portfolio segment:
Retained	364,312	357,050	$ 331,219
Held-for-sale	796	1,104
At fair value	1,923	2,861
Total	$ 367,031	$ 361,015

The aggregate carrying amount of loans receivable that that the entity has elected to carry at fair value. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan).

No definition available.

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- Definition

Originated or purchased loans held-for-investment, other than PCI loans, are measured at the principal amount outstanding, net of the following: allowance for loan losses; net charge-offs; interest applied to principal (for loans accounted for on the cost recovery method); unamortized discounts and premiums; and net deferred loan fees or costs.

+ References

No definition available.

+ Details

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- Definition

The aggregate carrying amount of loans receivable that will be sold to other entities, excluding loans that the entity has elected to carry at fair value. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Such loans are stated at the lower of cost or market. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan).

+ References

No definition available.

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- Definition

Amount before allowance and after 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524

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- References

No definition available.

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- Details

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- Details

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