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Supplemental Data (Summary of Accounts Receivable, Net) (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Supplemental Data (Millions of dollars) [Abstract]    
From customers $ 2,155 $ 2,092
Other 189 170
Less allowance for doubtful accounts and sales discounts (64) (55)
Total $ 2,280 $ 2,207