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Supplementary Information - Additional Quarterly Financial Data (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Supplementary Information                      
Impairment on disposition of assets           $ (20)   $ 360 $ 0 $ 340 $ 0
Restructuring charges, after tax     $ 1 $ 2   7 $ 2 8      
Income (charges) for tax matters $ 16 $ (2) $ 1 1 $ (4) (4) 32 (3)      
Acquisition/integration costs, after tax 4     $ 1 1 $ 4 4 $ 1      
Income (charges) for other matters, after tax $ (8) $ (7)     12   10        
Amount of benefit in equity method acquisition charges             $ 3        
Restructuring and impairment costs, after tax         19            
Amount of benefit in after-tax, fair value adjustment to equity investments         $ 5