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Impairment (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Impairment        
  Impairment (losses) reversals, net $ 37 $ (401) $ 46 $ (404)
Impairment of equity-accounted investments 1 18 1
Net effect within the statement of income 38 (401) 64 (403)
Losses (1) (428) (6) (453)
Reversals $ 39 $ 27 $ 70 $ 50