Subsequent Events (Details) - USD ($) $ in Millions	Feb. 03, 2022	Jan. 31, 2022	Dec. 31, 2021	Jul. 31, 2021	Apr. 30, 2021	Feb. 28, 2021	Dec. 31, 2015
Subsequent Event [Line Items]
Stock repurchase program, additional authorized amount				$ 800.0	$ 500.0	$ 300.0
Share repurchase program, authorized amount							$ 1,200.0
Stock repurchase program, remaining authorized repurchase amount			$ 591.0
Subsequent Event
Subsequent Event [Line Items]
Stock repurchase program, additional authorized amount	$ 500.0
Share repurchase program, authorized amount	$ 2,800.0
Stock repurchase program, remaining authorized repurchase amount		$ 527.0