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Goodwill and other intangible assets, net - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Finite-Lived Intangible Assets [Line Items]        
Finite-lived intangible assets, fully amortized and written off $ 5 $ 5 $ 5 $ 5
Finite-lived intangible assets, accumulated amortization, written off $ 20 $ 7 $ 20 $ 7
Customer relationships        
Finite-Lived Intangible Assets [Line Items]        
Acquired finite-lived intangible assets, weighted average useful life     13 years