Card Member Receivables and Card Member Loans (Details) - USD ($) $ in Millions	Feb. 01, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts receivable segment information
Less: Reserve for credit losses		$ 69	$ 162
Card Member receivables, net		9,337	25,395
Reduction of of Card member receivables (U.S. consumer Card Member receivables)	$ 7,200
Deferred discount revenue on card member receivable		24	75
Card Member Receivables [Member]
Accounts receivable segment information
Card Member receivables		9,406	25,557
Less: Reserve for credit losses		69	162
Card Member receivables, net		9,337	25,395
Global Consumer Services Group [Member] \| Card Member Receivables [Member]
Accounts receivable segment information
Card Member receivables		2,060	9,847
Global Commercial Services [Member] \| Card Member Receivables [Member]
Accounts receivable segment information
Card Member receivables		7,346	15,710
Global Corporate Payments [Member] \| Card Member Receivables [Member]
Accounts receivable segment information
Card Member receivables		$ 6,383	$ 13,690

Accounts Receivable Segment.

No definition available.

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- Definition

Deferred Discount Revenue on Card Member Receivable

+ References

No definition available.

+ Details

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- Definition

Credco no longer having an interest in the $7.2 billion in U.S. Consumer and Small Business Card Member receivables in the Charge Trust

+ References

No definition available.

+ Details

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
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-Name Accounting Standards Codification
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- Definition

Amount of allowance for credit loss on accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (a)
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- Definition

Amount, before allowance for credit loss, of financing receivable.

+ References

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-Publisher FASB
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+ Details

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- Details

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- Details

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- Details

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