Accounts Receivable - Allowance for Doubtful Accounts (Details) $ in Millions |
3 Months Ended |
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Mar. 31, 2020
USD ($)
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| Accounts Receivable, Allowance for Credit Loss [Roll Forward] | |
| Beginning balance | $ 47 |
| Provision for doubtful accounts | 12 |
| Bad debt write-offs | (13) |
| Ending balance | 58 |
| Cumulative Effect, Period Of Adoption, Adjustment | Accounting Standards Update 2016-13 | |
| Accounts Receivable, Allowance for Credit Loss [Roll Forward] | |
| Beginning balance | $ 12 |
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- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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