Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Common Stock (Details)

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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