Income tax Income tax (Details) - USD ($) $ in Millions |
Jun. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Deferred Tax Assets, Operating Loss Carryforwards, Domestic | $ 94 | $ 73 |
| SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | $ 1 |
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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