v3.10.0.1
Stockholders’ Equity (Tables)
 9 Months Ended
Sep. 30, 2018
Equity [Abstract]  
Summary of stock repurchase activity under stock repurchase program The stock repurchase activity under our stock repurchase programs during the nine months ended September 30, 2018 is summarized as follows (in millions, except per share amounts):
 
Shares Repurchased (1)
 
Average Price per Share (2)
 
Value of Shares Repurchased
 
Remaining Amount Authorized
Balance as of January 1, 2018
 
 
 
 
 
 
$
1,651

Authorization of additional plan in January 2018
 
 
 
 
 
 
6,000

Repurchase of shares of common stock
79

 
$
37.82

 
$
3,000

 
(3,000
)
Balance as of September 30, 2018
 
 
 
 
 
 
$
4,651

 

(1)
These repurchased shares of common stock were recorded as treasury stock and were accounted for under the cost method. None of the repurchased shares of common stock have been retired.
(2)
Excludes broker commissions.