CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Assets
Accounts Receivable, Allowance for Credit Loss, Current	$ 18.1	$ 12.1
Financing Receivable, Allowance for Credit Loss, Current	2.4	0.1
Allowance for Obsolete Inventory, Finished Goods	22.0	10.8
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	3,416.4	3,004.6
Finite-Lived Intangible Assets, Accumulated Amortization	1,206.5	995.1
Due to Affiliate, Current	$ 0.5	$ 0.0
Equity [Abstract]
Preferred Stock, Non-voting, No Par Value	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	25,000,000.0	25,000,000.0
Preferred Stock, Shares Issued	0	0
Treasury Stock, Shares	9,500,000	9,500,000
Class A common stock, voting
Equity [Abstract]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	500,000,000.0	500,000,000.0
Common Stock, Shares, Issued	2,600,000	2,600,000
Common Stock, Shares, Outstanding	2,600,000	2,600,000
Common stock issued, Class B
Equity [Abstract]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	500,000,000.0	500,000,000.0
Common Stock, Shares, Issued	209,800,000	205,700,000
Class A exchangeable shares
Equity [Abstract]
Exchangeable Stock, No Par Value	$ 0	$ 0
Exchangeable Stock, Shares Issued	2,700,000	2,700,000
Exchangeable Stock, Shares Outstanding	2,700,000	2,700,000
Class B Exchangeable Shares
Equity [Abstract]
Exchangeable Stock, No Par Value	$ 0	$ 0
Exchangeable Stock, Shares Issued	11,100,000	11,100,000
Exchangeable Stock, Shares Outstanding	14,800,000	14,800,000