Capital Stock, Accumulated Other Comprehensive Loss and Equity - Schedule of Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended			132 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
Equity [Abstract]
Aggregate Repurchases	$ 100.3	$ 70.0	$ 380.4	$ 4,800.0
Cash paid for Repurchases	$ 100.3	$ 70.0	$ 384.7
Number of Shares	589,717	641,149	2,819,081
Average Price per Share (in dollars per share)	$ 170.03	$ 109.22	$ 134.95	$ 90.97