Commitments and Contingencies - Other Guarantees (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Merchant Servicing Joint Venture | ||
| Loss Contingencies [Line Items] | ||
| Equity method investment ownership percentage | 49.00% | |
| Carrying value of investment | $ 2,900 | $ 2,900 |
| Merchant Processing Servicers, Sponsored Entities | ||
| Loss Contingencies [Line Items] | ||
| Transactions processed and settled by sponsored entities | 812,200 | 731,400 |
| Losses as result of cardholder disputed transactions | 28 | 33 |
| Life Insurance Book Value Protection | ||
| Loss Contingencies [Line Items] | ||
| Notional amount of derivatives | 10,400 | 13,900 |
| Maximum potential exposure | 1,600 | 3,200 |
| Net fair value of bank-owned life insurance book value protection | 3 | 4 |
| Merchant Services | Merchant Processing Servicers, Sponsored Entities | ||
| Loss Contingencies [Line Items] | ||
| Maximum potential exposure | 346,400 | 325,700 |
| Other Guarantee | ||
| Loss Contingencies [Line Items] | ||
| Maximum potential exposure | $ 5,900 | $ 6,700 |
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- Definition This represents losses recorded by the Corporation as a result of cardholder disputed transactions. No definition available.
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- Definition The amount of merchant services transactions processed and settled by sponsored merchant processing servicers that process credit and debit card transactions on behalf of various merchants. No definition available.
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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