Loans and Card Member Receivables (Details 4) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Impaired loans and receivables
Loans over 90 days past due and accruing interest	$ 407	$ 428
Non-accrual loans	324	338
Loans and receivables modified as a Troubled Debt Restructuring in Program	855	762
Loans and receivables modified as Troubled Debt Restructuring Out of Program	274	259
Total impaired loans and receivables	1,860	1,787
Related allowance for Troubled Debt Restructurings	326	168
Accounts Receivable and Loans Textuals
Total loans and receivables modified as a TDR, past due 90 days and still accruing	27	26
Total loans and receivables modified as a TDR, non-accrual	11	10
Out of Program TDR accounts that completed modification programs	197	188
Out of Program TDR accounts not in compliance with modification programs	77	72
Global Consumer Services Group [Member] \| Card Member Loans [Member]
Impaired loans and receivables
Loans over 90 days past due and accruing interest	361	384
Non-accrual loans	268	284
Loans and receivables modified as a Troubled Debt Restructuring in Program	557	500
Loans and receivables modified as Troubled Debt Restructuring Out of Program	185	175
Total impaired loans and receivables	1,371	1,343
Related allowance for Troubled Debt Restructurings	235	137
Global Consumer Services Group [Member] \| Card Member Loans [Member] \| Non-US [Member]
Impaired loans and receivables
Loans over 90 days past due and accruing interest	82	93
Global Consumer Services Group [Member] \| Card Member Receivables [Member]
Impaired loans and receivables
Loans over 90 days past due and accruing interest	0	0
Non-accrual loans	0	0
Loans and receivables modified as a Troubled Debt Restructuring in Program	63	56
Loans and receivables modified as Troubled Debt Restructuring Out of Program	14	16
Total impaired loans and receivables	77	72
Related allowance for Troubled Debt Restructurings	9	3
Global Commercial Services [Member] \| Card Member Loans [Member]
Impaired loans and receivables
Loans over 90 days past due and accruing interest	46	44
Non-accrual loans	56	54
Loans and receivables modified as a Troubled Debt Restructuring in Program	112	97
Loans and receivables modified as Troubled Debt Restructuring Out of Program	41	38
Total impaired loans and receivables	255	233
Related allowance for Troubled Debt Restructurings	64	22
Global Commercial Services [Member] \| Card Member Receivables [Member]
Impaired loans and receivables
Loans over 90 days past due and accruing interest	0	0
Non-accrual loans	0	0
Loans and receivables modified as a Troubled Debt Restructuring in Program	123	109
Loans and receivables modified as Troubled Debt Restructuring Out of Program	34	30
Total impaired loans and receivables	157	139
Related allowance for Troubled Debt Restructurings	$ 18	$ 6

Accounts Receivable and Loans.

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- Definition

Recorded investment in financing receivables that have been modified in a Troubled Debt Restructuring and are on nonaccrual status as of the balance sheet date.

+ References

No definition available.

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Recorded investment in financing receivables that have been modified in a Troubled Debt Restructuring and are 90 days or more past due and still accruing interest.

+ References

No definition available.

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Out of Program TDRs that have succesfully completed a modification program

+ References

No definition available.

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Out of Program TDRs accounts that were not in compliance with the terms of modification programs

+ References

No definition available.

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Loans and receivables modified as a Troubled Debt Restructuring Out of Program

+ References

No definition available.

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Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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Amount of financing receivable 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of allowance for credit losses related to recorded investment.

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- References

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Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.

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