Financial Instruments and Risk Management (Rollforward of Contingent Consideration) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Schedule of Activity in Contingent Consideration [Roll Forward]
Balance at beginning of period	$ 223.6	$ 250.7
Payments	83.2	111.8
Accretion	9.0	11.6
Reclassifications	0.0	0.0
Fair value loss (gain)	50.3	73.1
Balance at end of period	199.7	223.6
Other current liabilities
Schedule of Activity in Contingent Consideration [Roll Forward]
Balance at beginning of period	100.5	120.4
Payments	83.2	111.8
Accretion	0.0	0.0
Reclassifications	49.4	58.1
Fair value loss (gain)	0.0	33.8
Balance at end of period	66.7	100.5
Other Noncurrent Liabilities
Schedule of Activity in Contingent Consideration [Roll Forward]
Balance at beginning of period	123.1	130.3
Payments	0.0	0.0
Accretion	9.0	11.6
Reclassifications	(49.4)	(58.1)
Fair value loss (gain)	50.3	39.3
Balance at end of period	$ 133.0	$ 123.1