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Liabilities, Commitments and Contingencies - Schedule of Environmental Remediation Activity (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Environmental [Roll Forward]    
Beginning balance – January 1 $ 752 $ 605
Reductions for payments made, net of recoveries (24) (11)
Changes in estimates 72 131
Ending balance – June 30 $ 800 $ 725