Stockholders’ Equity (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Summary of stock repurchase activity under stock repurchase program

The stock repurchase activity under our stock repurchase programs during the six months ended June 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	50	$	40.05	$	2,000	(2,000		)
Balance as of June 30, 2018						$	5,651

(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.