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Long-term assets - E.1.4. Cash used for the purchase of intangible assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]      
Additions $ 258 $ 127 $ 419
Change in accruals and payables for intangibles (79) (29) (315)
Cash used for additions $ 179 $ 98 [1] $ 101 [1]
[1] Re-presented for discontinued operations (see note A.4.).