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Selected Balance Sheet Data Selected Balance Sheet Data, Accounts Receivable (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Balance Sheet Related Disclosures [Abstract]    
Accounts receivable $ 1,308 $ 1,124
Less allowance for bad debts (112) (106)
Accounts receivable, net $ 1,196 $ 1,018