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Financial and other non-current assets (Details 1) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Disclosure of other non-current assets [abstract]    
Deferred compensation plans assets $ 419 $ 520
Prepaid post-employment benefit plans assets 491 1,415
Other non-current assets 200 275
Total other non-current assets $ 1,110 $ 2,210