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Receivables, net (Notes)
6 Months Ended
Jun. 30, 2021
Receivables, Net, Current [Abstract]  
Loans, Notes, Trade and Other Receivables Disclosure [Text Block] RECEIVABLES
Receivables consist of:
June 30, 2021December 31, 2020
Trade accounts receivable$135.4 $139.0 
Allowance for current expected credit losses(1.5)(1.6)
Unbilled receivables7.4 5.1 
Taxes receivable0.3 16.0 
Other2.3 2.1 
$144.0 $160.6