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v3.21.1

Receivables (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) agreement | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($)
Schedule Of Financial Receivables [Line Items] |  |  |
Accounts receivable securitization arrangements | agreement | 2 |  |
Deferred purchase program receivable | $ 68 |  | $ 12
Net cash funding received during the period | 26 | $ 52 |
Amount of cash draws under arrangement during the period | 18 | 98 |
Amount of cash repayments under arrangement during the period | 44 | 150 |
Accounts receivable remaining outstanding | 65 |  | 46
Accounts receivable securitization | 425 |  | 425
Accounts receivable securitization amount drawn | 243 |  | 250
Reduction in accounts receivable from securitization | 7 |  |
Customer One |  |  |
Schedule Of Financial Receivables [Line Items] |  |  |
Accounts receivables sold | 7 | 14 |
Accounts receivable remaining outstanding | 7 |  |
Customer Two |  |  |
Schedule Of Financial Receivables [Line Items] |  |  |
Accounts receivables sold | 59 | 17 |
Accounts receivable remaining outstanding | 57 |  |
Special Purpose Entity |  |  |
Schedule Of Financial Receivables [Line Items] |  |  |
Accounts receivables sold | 84 |  |
Receivables, maximum allowable purchase limit | 125 |  |
Financing receivables, held as collateral | 16 |  | $ 33
Arconic Corporation |  |  |
Schedule Of Financial Receivables [Line Items] |  |  |
Deferred purchase program receivable |  | 282 |
Maximum |  |  |
Schedule Of Financial Receivables [Line Items] |  |  |
Funding of customer receivables sold, maximum | $ 400 | $ 300 |

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- Definition Amount of decrease from sale of 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 11 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919244-210447 + Details
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