Stockholders' Equity of the Company - Stock Repurchase Program (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) increase $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Jun. 30, 2018 USD ($)	Aug. 31, 2016 USD ($)
Class of Stock [Line Items]
Number of shares purchased (in shares) | shares	4,596,171	9,744,911	8,342,411
Maximum approximate dollar value of shares that may yet be purchased under the plan | $ / shares	$ 83.62	$ 96.22	$ 101.64
2016 Repurchase Program
Class of Stock [Line Items]
Stock repurchase program, authorized amount | $		$ 500,000,000	$ 500,000,000.0	$ 500,000,000	$ 1,000,000,000.0
Number of increases to share repurchase program | increase	4
Stock repurchase program, authorized amount, total | $	$ 3,000,000,000.0
Number of shares purchased (in shares) | shares	22,683,493	18,087,322	8,342,411