Accounts receivable - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Accounts receivable – billed | $ 223 | $ 213 | |
| Accounts receivable – unbilled | 201 | 175 | |
| Other receivables | 5 | 28 | |
| Billed and unbilled trade receivables and other receivables | 429 | 416 | |
| Allowance for doubtful accounts | (1) | (2) | $ (5) |
| Total | $ 428 | $ 414 |
| X | ||||||||||
- Definition The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of current other receivables. [Refer: Other receivables] Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Current Gross Trade Receivables, Billed No definition available.
|
| X | ||||||||||
- Definition Current Gross Trade Receivables, Unbilled No definition available.
|
| X | ||||||||||
- Definition Trade and Other Current Receivables, Before Allowance For Credit Losses No definition available.
|