Income taxes - Deferred tax assets and liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Income Tax Disclosure [Abstract] | ||
| Deferred tax assets | $ 473 | $ 263 |
| Deferred tax liabilities | (66) | (87) |
| Net deferred tax asset | $ 407 | $ 176 |
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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