Goodwill and Intangible Assets - Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2014
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Dec. 31, 2013
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Intangible Assets [Abstract] | ||||||||
Gross Carrying Value | $ 14,964 | [1],[2] | $ 17,397 | [1],[2] | ||||
Accumulated Amortization | 10,115 | [1],[2] | 11,823 | [1],[2] | ||||
Net Carrying Value | 4,849 | [1],[2] | 5,574 | [1],[2] | ||||
Purchased credit card relationships
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Intangible Assets [Abstract] | ||||||||
Gross Carrying Value | 5,543 | [1],[2] | 6,160 | [1],[2] | ||||
Accumulated Amortization | 4,479 | [1],[2] | 4,849 | [1],[2] | ||||
Net Carrying Value | 1,064 | [1],[2] | 1,311 | [1],[2] | ||||
Core deposit intangibles
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Intangible Assets [Abstract] | ||||||||
Gross Carrying Value | 1,779 | [1],[2] | 3,592 | [1],[2] | ||||
Accumulated Amortization | 1,350 | [1],[2] | 3,055 | [1],[2] | ||||
Net Carrying Value | 429 | [1],[2] | 537 | [1],[2] | ||||
Customer relationships
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Intangible Assets [Abstract] | ||||||||
Gross Carrying Value | 4,025 | [1],[2] | 4,025 | [1],[2] | ||||
Accumulated Amortization | 2,559 | [1],[2] | 2,281 | [1],[2] | ||||
Net Carrying Value | 1,466 | [1],[2] | 1,744 | [1],[2] | ||||
Affinity relationships
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Intangible Assets [Abstract] | ||||||||
Gross Carrying Value | 1,572 | [1],[2] | 1,575 | [1],[2] | ||||
Accumulated Amortization | 1,265 | [1],[2] | 1,197 | [1],[2] | ||||
Net Carrying Value | 307 | [1],[2] | 378 | [1],[2] | ||||
Other intangibles
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Intangible Assets [Abstract] | ||||||||
Gross Carrying Value | 2,045 | [1],[2] | 2,045 | [1],[2] | ||||
Accumulated Amortization | 462 | [1],[2] | 441 | [1],[2] | ||||
Net Carrying Value | $ 1,583 | [1],[2] | $ 1,604 | [1],[2] | ||||
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