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Supplemental Income (Loss) Statement Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Other Income and Expenses [Abstract]        
Interest expense $ 144 $ 128 $ 267 $ 241
Interest income (48) (11) (88) (19)
Pension and postretirement net periodic benefit cost (benefit) (31) (67) (62) (134)
Total $ 65 $ 50 $ 117 $ 88