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Financial Instruments - Summary of Carrying Amounts and Fair Value of Financial Instruments (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Financial assets    
Derivative instruments $ 22 $ 3
Other investments and non-current accounts receivable 221 272
Other investments and non-current accounts receivable 243 275
Financial liabilities    
Long-term debt 7,306 9,160
Other financial obligations 911 967
Derivative instruments 30 53
Total financial liabilities 8,247 10,180
At Fair Value [Member]    
Financial assets    
Derivative instruments 22 3
Other investments and non-current accounts receivable 221 272
Other investments and non-current accounts receivable 243 275
Financial liabilities    
Long-term debt 7,629 9,687
Other financial obligations 919 1,012
Derivative instruments 30 53
Total financial liabilities $ 8,578 $ 10,752