Note 10. Stock Plans

Stock Options:

Stock option activity consisted of the following:


	Shares Subject to Option			Weighted-Average Exercise or Grant Price Per Share		Aggregate Intrinsic Value

Balance at January 1, 2015		56,431,551		$	24.19	$	685 million

Annual grants to eligible employees		8,899,530			36.94
Additional options granted		868,730			35.59

Total options granted		9,768,260			36.82
Options exercised		(4,439,379	)		22.90	$	65 million
Options cancelled		(1,167,068	)		31.72

Balance at June 30, 2015		60,593,364			26.18	$	906 million

Restricted Stock, Deferred Stock Units and Performance Share Units:

Restricted stock, deferred stock unit and performance share unit activity consisted of the following:


	Number of Shares			Grant Date	Weighted-Average Fair Value Per Share		Weighted-Average Aggregate Fair Value

Balance at January 1, 2015		10,582,640			$	28.56

Annual grants to eligible employees:
Performance share units		1,598,290		Feb. 18, 2015		36.94
Restricted stock		386,910		Feb. 18, 2015		36.94
Deferred stock units		866,640		Feb. 18, 2015		36.94
Additional shares granted ⁽¹⁾		775,579		Various		37.06

Total shares granted		3,627,419				36.97	$	134 million
Vested		(3,286,055	)			36.97	$	121 million
Forfeited		(737,151	)			31.81

Balance at June 30, 2015		10,186,853				28.61

(1)

Includes performance share units, restricted stock and deferred stock units.

Share Repurchase Program:

During 2013, our Board of Directors authorized the repurchase of $7.7 billion of our Common Stock through December 31, 2016. Repurchases under the program are determined by management and are wholly discretionary. During the six months ended June 30, 2015, we repurchased 58.2 million shares of Common Stock at an average cost of $37.17 per share, or an aggregate cost of $2.2 billion, of which $2.1 billion was paid during the period. All share repurchases were funded through available cash and commercial paper issuances. As of June 30, 2015, we had $0.9 billion in remaining share repurchase capacity. On July 29, 2015, our Finance Committee, with authorization delegated from our Board of Directors, approved an increase of $6.0 billion in the share repurchase plan, raising the authorization to $13.7 billion of Common Stock repurchases, and extended the program through December 31, 2018.