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Loans and Card Member Receivables (Details 5) account in Thousands, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 USD ($) account | Sep. 30, 2020 USD ($) account | Sep. 30, 2021 USD ($) account | Sep. 30, 2020 USD ($) account
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Accounts | account | 6 | 6 | 28 | 16
Aggregated Outstanding Balance Upon Default | $ | $ 43 | $ 49 | $ 205 | $ 120
Card Member Loans |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Accounts | account | 4 | 4 | 20 | 11
Aggregated Outstanding Balance Upon Default | $ | $ 32 | $ 32 | $ 148 | $ 84
Card Member Receivables |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Accounts | account | 1 | 1 | 5 | 3
Aggregated Outstanding Balance Upon Default | $ | $ 10 | $ 16 | $ 48 | $ 34
Other Loans |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number of Accounts | account | 1 | 1 | 3 | 2
Aggregated Outstanding Balance Upon Default | $ | $ 1 | $ 1 | $ 9 | $ 2

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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=123577603&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=123577603&loc=SL6953682-111524 + Details
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