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Supplementary Information - Summary of Other Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting [Abstract]    
Investments in APS projects $ 2,111 $ 2,023
Pension and other postretirement plan assets 629 904
Operating lease assets 718 538
Exploration data costs capitalized 151 141
Fair value of hedge contracts 65 1
Other 378 363
Total other assets $ 4,052 $ 3,970