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Schedule II - Valuation And Qualifying Accounts
 12 Months Ended
Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation And Qualifying Accounts
SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS
(In millions)
Balance
as of Beginning
of Period		AdditionsRetirementsOther
Changes		Balance
as of End
of Period
For the year ended December 31, 2020
Valuation of accounts deducted from related assets:
Allowance for doubtful accounts$36.0 $7.0 $(9.8)$2.1 $35.3 
Allowance for deferred tax assets344.8 81.4 (43.5)15.0 397.7 
Total$380.8 $88.4 $(53.3)$17.1 $433.0 
Balance
as of Beginning
of Period		AdditionsRetirementsOther
Changes		Balance
as of End
of Period
For the year ended December 31, 2019
Valuation of accounts deducted from related assets:
Allowance for doubtful accounts$33.2 $14.3 $(10.9)$(0.6)$36.0 
Allowance for deferred tax assets350.4 31.3 (30.7)(6.2)344.8 
Total$383.6 $45.6 $(41.6)$(6.8)$380.8 
Balance
as of Beginning
of Period		AdditionsRetirementsOther
Changes		Balance
as of End
of Period
For the year ended December 31, 2018
Valuation of accounts deducted from related assets:
Allowance for doubtful accounts$41.8 $11.4 $(17.5)$(2.5)$33.2 
Allowance for deferred tax assets402.2 24.5 (56.7)(19.6)350.4 
Total$444.0 $35.9 $(74.2)$(22.1)$383.6