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Receivables (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 30, 2012 | Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Schedule Of Financial Receivables [Line Items] |  |  |  |
Funding of customer receivables sold, maximum |  | $ 52,000,000 |  |
Deferred purchase program receivable | $ 254,000,000 | 65,000,000 |  | $ 246,000,000
Sale of customer receivables | 304,000,000 |  |  |
Cash received for receivables | $ 50,000,000 | 48,000,000 | $ 160,000,000 |
Net cash funding received during the period |  | 248,000,000 |  |
Amount of cash draws under arrangement during the period |  | 3,656,000,000 |  |
Amount of cash repayments under arrangement during the period |  | (3,408,000,000) |  |
Amount of cash repayments under arrangement since inception |  | (150,000,000) |  |
Amount of cash draws under arrangement since inception |  | 98,000,000 |  |
Accounts receivables sold |  | 31,000,000 |  |
Global Rolled Products |  |  |  |
Schedule Of Financial Receivables [Line Items] |  |  |  |
Deferred purchase program receivable |  | 282,000,000 |  |
Maximum |  |  |  |
Schedule Of Financial Receivables [Line Items] |  |  |  |
Funding of customer receivables sold, maximum |  | $ 300,000,000 |  | $ 400,000,000

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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=119407570&loc=SL82919244-210447 + Details
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- Definition The cash inflow associated with the sale of receivables arising from the financing of goods and services. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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