Stockholders' Equity - Additional Information (Details) - USD ($)								1 Months Ended				3 Months Ended		6 Months Ended
	Jul. 24, 2019	Jun. 28, 2019	Apr. 29, 2019	Apr. 01, 2019	Mar. 29, 2019	Feb. 13, 2019	Jan. 02, 2019	Jul. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Class of Stock [Line Items]
Common stock, authorized (in shares)									2,000,000,000		2,000,000,000	2,000,000,000		2,000,000,000
Preferred stock, authorized (in shares)									80,000,000			80,000,000		80,000,000
Preferred stock, par value (in dollars per share)									$ 0.001			$ 0.001		$ 0.001
Share price (per share)									$ 146.46		$ 108.83	146.46		146.46
Common stock, dividends, per share, declared (in dollars per share)			$ 0.25			$ 0.25						$ 0.25		$ 0.5
Dividends		$ 41,000,000.0			$ 40,900,000							$ 41,000,000.0	$ 0	$ 81,900,000	$ 0
Treasury stock, shares acquired (in shares)												361,473	1,328,658	998,063	1,711,166
Treasury stock acquired												$ 50,000,000.0	$ 140,600,000	$ 125,000,000.0	$ 180,400,000
Accelerated share repurchases, initial price, shares (in shares)														998,063
Treasury stock (in shares)									380,128,257		380,032,628	380,128,257		380,128,257
Reissued of common stock (in shares)														902,434
Weighted average price per share (in dollars per share)									$ 9.68			$ 9.68		$ 9.68
Common stock shares excluded from diluted EPS (in shares)												897,875	906,866	473,848	455,292
Subsequent Event
Class of Stock [Line Items]
Common stock, dividends, per share, declared (in dollars per share)	$ 0.25
May 2010 Share Repurchase Program
Class of Stock [Line Items]
Cumulative value of shares repurchased									$ 2,997,400,000			$ 2,997,400,000		$ 2,997,400,000
Treasury stock, shares acquired (in shares)														998,063
Treasury stock acquired														$ 125,000,000.0
May 2010 Share Repurchase Program | Common Stock Issued
Class of Stock [Line Items]
Share repurchase program, authorized capacity									3,300,000,000.0			3,300,000,000.0		3,300,000,000.0
Available shares for repurchase									$ 302,600,000			$ 302,600,000		$ 302,600,000
December 2018 Share Repurchase Program
Class of Stock [Line Items]
Accelerated share repurchases, purchase price											$ 75,000,000.0
Accelerated share repurchases, initial price, shares (in shares)							550,257
Accelerated share repurchases, initial price paid per share (in dollars per share)														$ 109.04
Accelerated share repurchases, final settlement, additional shares										86,333
March 2019 Share Repurchase Program
Class of Stock [Line Items]
Accelerated share repurchases, purchase price										$ 50,000,000.0
Accelerated share repurchases, initial price, shares (in shares)				300,752
Accelerated share repurchases, initial price paid per share (in dollars per share)														$ 133.00
Accelerated share repurchases, final settlement, additional shares									60,721
June 2019 Share Repurchase Program | Subsequent Event
Class of Stock [Line Items]
Accelerated share repurchases, purchase price								$ 75,000,000.0
Accelerated share repurchases, initial price, shares (in shares)								409,668
Accelerated share repurchases, initial price paid per share (in dollars per share)								$ 146.46
Accelerated share repurchases, initial purchase price								$ 60,000,000.0