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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS
($ in millions)
 
ClassificationBalance at
Beginning of
Period		Charged to
Costs &
Expenses		Impact of
Currency
Charged
to Other
Accounts(a)
Write Offs,
Write Downs &
Deductions		Balance at
End
of Period
Year Ended December 31, 2021:
Allowances deducted from asset accounts
Allowance for credit losses$42.5 $7.1 $(0.7)$2.0 $(11.2)$39.7 
Year Ended December 31, 2020:
Allowances deducted from asset accounts
Allowance for credit losses$26.4 $7.1 $1.2 $11.5 $(3.7)$42.5 
Year Ended December 31, 2019:
Allowances deducted from asset accounts
Allowance for credit losses$18.7 $12.2 $(0.3)$0.6 $(4.8)$26.4 
(a) Amounts are related to businesses acquired. In addition, the year ended December 31, 2020 includes an increase in the allowance for trade accounts receivables of $11.5 million recognized upon the adoption of ASU 2016-13 on January 1, 2020.