Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Common Stock (Details)

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Stockholders' Equity - Common Stock (Details) - USD ($)
 12 Months Ended
Nov. 30, 2016
Oct. 26, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
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)     4,746,047,000 5,153,451,000  
Common stock, shares outstanding (in shares)     4,740,947,000 5,147,647,000  
Common stock reserved for issuance (in shares)     362,541,000    
Dividends declared per common share (in dollars per share)   $ 0.01 $ 0.01 $ 0 $ 0
Dividends paid $ 48,079,000   $ 48,079,000 $ 0 $ 0
Number of shares repurchased (in shares)     2,203,608,000    
Aggregate cost for shares repurchased     $ 7,973,837,000    
Remaining amount authorized under the stock repurchase program     2,026,163,000    
Interest expense related to amoritization costs         $ 12,701,000
Common Stock          
Class of Stock [Line Items]          
Stock repurchase program, aggregate authorized amount     $ 10,000,000,000