Accounts Receivable - Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2022 |
Jun. 30, 2021 |
|
| Accounts Receivable, Allowance for Credit Loss [Roll Forward] | ||
| Balance as of January 1, | $ 81 | $ 72 |
| (Recovery of)/provision for doubtful accounts | (1) | 14 |
| Bad debt write-offs | (4) | (8) |
| Balance as of June 30, | $ 76 | $ 78 |
| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- 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.
|
| X | ||||||||||
- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|