Supplemental Cash Flow Information (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental Cash Flow Information [Abstract]
Interest Paid, Excluding Capitalized Interest, Operating Activities		$ 175.9	$ 182.2	$ 192.7
Change in operating lease right-of-use asset and lease liabilities		(35.2)	192.6	9.4
Cash paid for income taxes, net of refunds	[1]	229.1	89.1	150.2
Tax refunds		47.1	124.2	92.6
Restructuring Charges		10.6	413.8	33.9
Supplemental Cash Flow Elements [Abstract]
Lease restructuring costs		6.3	209.9	8.7
Change in operating lease right-of-use asset and lease liabilities		(35.2)	192.6	9.4
Net cash activities for operating lease right-of-use asset and lease liabilities included in Other non-current assets and liabilities under Operating Activities		$ 41.5	$ 17.3	$ 0.7

[1] Refunds of $47.1, $124.2 and $92.6 were received for the years ended December 31, 2021, 2020 and 2019, respectively.