Treasury Stock (Details) - USD ($)		3 Months Ended
	Jan. 30, 2020	Mar. 31, 2020	Mar. 31, 2019	Jan. 31, 2020
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount				$ 1,000,000,000.00
Available to repurchase common stock		$ 914,100,000
Available to repurchase common stock, net of ASR shares		714,100,000
Contracted but undelivered shares under the ASR program		200,000,000.0
Amount expended on share repurchases in open market transactions		$ 199,903,000	$ 93,805,000
Number of shares withheld to satisfy minimum tax withholding obligations		483,224	593,988
Payment for tax withholding related to vested stock units		$ 65,300,000	$ 60,100,000
Open Market Purchases [Member]
Equity, Class of Treasury Stock [Line Items]
Amount expended on share repurchases in open market transactions		$ 199,900,000	$ 93,800,000
Stock repurchases net (shares)		1,731,500	911,060
Average per share price on share repurchases in open market transactions (in dollars per share)		$ 115.45	$ 102.96
ASR Counterparty [Member]
Equity, Class of Treasury Stock [Line Items]
Amount expended on share repurchases in open market transactions	$ 1,000,000,000.00
Stock repurchases net (shares)	6,500,000