Fair Value Measurements - Summary of Fair and Carrying Value of Debt Instruments (Details) - Senior Notes - USD ($) $ in Millions	1 Months Ended
	Feb. 28, 2021	Dec. 31, 2021	Dec. 31, 2020	Apr. 30, 2020
Debt Instrument
Notes payable, fair value		$ 8,004.7	$ 8,515.9
3.625% Senior Notes due September 15, 2022
Debt Instrument
Notes payable, fair value		$ 1,020.0	1,054.1
Interest rate on senior notes		3.625%
4.050% Senior Notes due September 15, 2025
Debt Instrument
Notes payable, fair value		$ 1,895.2	2,003.1
Interest rate on senior notes		4.05%
2.250% Senior Notes due May 1, 2030
Debt Instrument
Notes payable, fair value		$ 1,475.9	1,557.2
Interest rate on senior notes		2.25%		2.25%
5.200% Senior Notes due September 15, 2045
Debt Instrument
Notes payable, fair value		$ 1,463.0	2,365.1
Interest rate on senior notes		5.20%
Long term debt, exchanged amount	$ 624.6
3.150% Senior Notes due May 1, 2050
Debt Instrument
Notes payable, fair value		$ 1,457.7	1,536.4
Interest rate on senior notes		3.15%		3.15%
3.250% Senior Notes due February 15, 2051
Debt Instrument
Notes payable, fair value		$ 692.9	$ 0.0
Interest rate on senior notes		3.25%
Long term debt, exchanged amount	$ 700.7