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Loans and Card Member Receivables (Details 6) account in Thousands, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) account | Jun. 30, 2019 USD ($) account | Jun. 30, 2020 USD ($) account | Jun. 30, 2019 USD ($) account
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Accounts | account | 5 | 4 | 10 | 7
Aggregated Outstanding Balance Upon Default | $ | $ 34 | $ 23 | $ 71 | $ 44
Card Member Loans [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Accounts | account | 3 | 3 | 7 | 5
Aggregated Outstanding Balance Upon Default | $ | $ 24 | $ 18 | $ 52 | $ 36
Card Member Receivables [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Accounts | account | 1 | 1 | 2 | 2
Aggregated Outstanding Balance Upon Default | $ | $ 9 | $ 5 | $ 18 | $ 8
Other Loans [Member] |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Accounts | account | 1 |  | 1 |
Aggregated Outstanding Balance Upon Default | $ | $ 1 |  | $ 1 |

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- Definition Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
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- Definition Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
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