Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statement of Stockholders' Equity (Parenthetical)

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Consolidated Statement of Stockholders' Equity (Parenthetical) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Other comprehensive earnings, tax $ 16  
Common stock    
Common stock, par value (in dollars per share) $ 0.001 0.001
Treasury Stock    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001