Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Principles (Policies)
Notes Tables
Notes Details

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details)

v3.8.0.1

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Intangible Assets [Abstract]
Gross Carrying Value	$ 13,640	$ 13,640
Accumulated Amortization	11,463	11,328
Net Carrying Value	2,177	2,312
Trade Names
Intangible Assets [Abstract]
Intangible assets, net (excluding goodwill)	1,600	1,600
Purchased credit card relationships
Intangible Assets [Abstract]
Gross Carrying Value	5,919	5,919
Accumulated Amortization	5,643	5,604
Net Carrying Value	276	315
Core deposit intangibles
Intangible Assets [Abstract]
Gross Carrying Value	3,835	3,835
Accumulated Amortization	2,160	2,140
Net Carrying Value	1,675	1,695
Customer relationships
Intangible Assets [Abstract]
Gross Carrying Value	3,886	3,886
Accumulated Amortization	3,660	3,584
Net Carrying Value	$ 226	$ 302

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- References

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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