Net Charge Offs.

No definition available.

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- Definition

Percentage of loans ninety plus days past due to total retained loans.

+ References

No definition available.

+ Details

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- Definition

This item represents the percentage of loans 30 plus days past due as compared to total retained loans.

+ References

No definition available.

+ Details

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- Definition

Percentage of recorded investment in retained loans that have estimated refreshed FICO scores of less than 660.

+ References

No definition available.

+ Details

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- Definition

Percentage of recorded investment in retained loans that have estimated refreshed FICO scores equal or greater than 660.

+ References

No definition available.

+ Details

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- Definition

Percentage of net charge-offs to retained loans.

+ References

No definition available.

+ Details

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- Definition

Percentage of Loans with No FICO Score Available

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ 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=65884687&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=66008989&loc=d3e5074-111524

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Loans - Credit Card Loan Portfolio (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loans and Leases Receivable Disclosure [Line Items]
Retained	$ 889,907	$ 832,792	$ 747,508
Credit card
Loans and Leases Receivable Disclosure [Line Items]
Net charge-offs	$ 3,442	$ 3,122
% of net charge-offs to retained loans	2.63%	2.51%
Retained	$ 141,711	$ 131,387
Total 30 day delinquency rate	1.61%	1.43%
% of 90 days past due to total retained loans	0.81%	0.72%
Percentage of portfolio based on carrying value with estimated refreshed FICO scores, Equal to or greater than 660	84.40%	84.40%
Percentage of portfolio based on carrying value with estimated refreshed FICO scores, Less than 660	14.20%	13.10%
Percentage of portfolio based on carrying value with estimated refreshed FICO scores, No FICO available	1.40%	2.50%
Credit card \| California
Loans and Leases Receivable Disclosure [Line Items]
Retained	$ 20,571	$ 18,802
Credit card \| Texas
Loans and Leases Receivable Disclosure [Line Items]
Retained	13,220	11,847
Credit card \| New York
Loans and Leases Receivable Disclosure [Line Items]
Retained	12,249	11,360
Credit card \| Florida
Loans and Leases Receivable Disclosure [Line Items]
Retained	8,585	7,806
Credit card \| Illinois
Loans and Leases Receivable Disclosure [Line Items]
Retained	8,189	7,655
Credit card \| New Jersey
Loans and Leases Receivable Disclosure [Line Items]
Retained	6,271	5,879
Credit card \| Ohio
Loans and Leases Receivable Disclosure [Line Items]
Retained	4,906	4,700
Credit card \| Pennsylvania
Loans and Leases Receivable Disclosure [Line Items]
Retained	4,787	4,533
Credit card \| Michigan
Loans and Leases Receivable Disclosure [Line Items]
Retained	3,741	3,562
Credit card \| Colorado
Loans and Leases Receivable Disclosure [Line Items]
Retained	3,699	3,399
Credit card \| All other
Loans and Leases Receivable Disclosure [Line Items]
Retained	55,493	51,844
Credit card \| Current and less than 30 days past due and still accruing
Loans and Leases Receivable Disclosure [Line Items]
Retained	139,434	129,502
Credit card \| 30–89 days past due and still accruing
Loans and Leases Receivable Disclosure [Line Items]
Retained	1,134	941
Credit card \| 90 or more days past due and still accruing
Loans and Leases Receivable Disclosure [Line Items]
Retained	$ 1,143	$ 944