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Supplemental Financial Information - Other Non-Current Liabilities (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Liability, Defined Benefit Plan, Noncurrent $ 260 $ 256
Postretirement obligation 446 412
Other deferred compensation 332 241
Other Liabilities, Noncurrent $ 1,038 $ 909