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Restructuring and Other Charges, Net - Schedule of Restructuring and Other Charges, Net (Detail) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restructuring And Related Activities [Abstract]        
Settlements and/or curtailments related to retirement benefits   $ 977 $ 58 $ 119
Severance and employee termination costs $ 37 1 16 51
Asset impairments   75 2 225
Asset retirement obligations   23 2 75
Environmental remediation   15 1 69
Loss on divestitures       446
Other   82 36 52
Reversals of previously recorded layoff and other costs   (45) (11) (6)
Restructuring and other charges, net   $ 1,128 $ 104 $ 1,031