Stockholders' Equity

3 Months Ended

Mar. 31, 2016

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

The Company’s Board of Directors has approved share repurchase programs authorizing the Company to repurchase its Class A common stock. The Company typically completes a share repurchase program before a new program becomes effective. The following table summarizes the Company’s share repurchase authorizations of its Class A common stock through March 31, 2016, as well as historical purchases:

	Authorization Dates
	December 2015		December 2014		December 2013		Total
	(in millions, except average price data)
Board authorization	$	4,000	$	3,750	$	3,500	$	11,250
Dollar value of shares repurchased during the three months ended March 31, 2015	$	—	$	672	$	275	$	947
Remaining authorization at December 31, 2015	$	4,000	$	507	$	—	$	4,507
Dollar value of shares repurchased during the three months ended March 31, 2016	$	850	$	507	$	—	$	1,357
Remaining authorization at March 31, 2016	$	3,150	$	—	$	—	$	3,150
Shares repurchased during the three months ended March 31, 2015	—		7.8		3.2		11.0
Average price paid per share during the three months ended March 31, 2015	$	—	$	87.17	$	84.31	$	86.32
Shares repurchased during the three months ended March 31, 2016	9.7		5.7		—		15.4
Average price paid per share during the three months ended March 31, 2016	$	87.38	$	89.76	$	—	$	88.26
Cumulative shares repurchased through March 31, 2016	9.7		40.8		45.8		96.3
Cumulative average price paid per share	$	87.38	$	92.03	$	76.42	$	84.13