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Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts Valuation and Qualifying Accounts
The table below provides changes in the allowance for credit losses over each period:
(in millions)202220212020
Balance at beginning of year$35 $38 $25 
Additions charged to expense5 2 25 
Deductions/other(6)(5)(12)
Balance at end of year$34 $35 $38