Stockholders' Equity - Common Stock (Details) - USD ($)			3 Months Ended
	Feb. 28, 2017	Jan. 24, 2017	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Class of Stock [Line Items]
Common stock, par value (in dollars per share)			$ 0.001		$ 0.001
Common stock, shares authorized (in shares)			9,000,000,000		9,000,000,000
Common stock, shares issued (in shares)			4,686,473,000		4,746,047,000
Common stock, shares outstanding (in shares)			4,683,473,000		4,740,947,000
Common stock reserved for issuance (in shares)			346,000,000
Dividends declared per common share (in dollars per share)		$ 0.01	$ 0.01	$ 0
Dividends paid	$ 47,137,000		$ 47,137,000	$ 0
Number of shares repurchased (in shares)			2,265,148,000
Aggregate cost for shares repurchased			$ 8,272,394,000
Remaining amount authorized under the stock repurchase program			1,727,606,000
Common Stock
Class of Stock [Line Items]
Stock repurchase program, aggregate authorized amount			$ 10,000,000,000