XML 147 R131.htm IDEA: XBRL DOCUMENT v3.22.0.1
Valuation and Qualifying Accounts (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reserve For Accounts Receivable [Member]      
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]      
Beginning Balance $ 52.3 $ 19.2 $ 21.1
Valuation Allowances and Reserves, Charged to Cost and Expense 18.3 31.6 21.6
Valuation Allowances and Reserves, Charged to Other Accounts 6.4 33.0 41.3
Deductions for Purposes for which Reserves were Created 53.5 31.5 64.8
Ending Balance 23.5 52.3 19.2
Reserve For Other Investments [Member]      
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]      
Beginning Balance 0.0 3.0 3.0
Valuation Allowances and Reserves, Charged to Cost and Expense   0.0 0.0
Valuation Allowances and Reserves, Charged to Other Accounts   0.0 0.0
Deductions for Purposes for which Reserves were Created   3.0 0.0
Ending Balance   0.0 $ 3.0
Reserve for Deferred Charges and Other      
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]      
Beginning Balance 0.0    
Valuation Allowances and Reserves, Charged to Cost and Expense 0.0    
Valuation Allowances and Reserves, Charged to Other Accounts 2.3    
Deductions for Purposes for which Reserves were Created 0.0    
Ending Balance $ 2.3 $ 0.0