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		880,500			35.70

Total options granted		9,780,030			36.83
Options exercised		(5,573,601	)		23.03	$	88 million
Options cancelled		(2,435,433	)		32.21

Balance at September 30, 2015		58,202,547			26.09	$	233 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⁾		845,809		Various		37.44

Total shares granted		3,697,649				37.05	$	137 million
Vested		(3,442,710	)			37.18	$	128 million
Forfeited		(1,160,533	)			32.17

Balance at September 30, 2015		9,677,046				28.31

(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. 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. Repurchases under the program are determined by management and are wholly discretionary. During the nine months ended September 30, 2015, we repurchased 79.7 million shares of Common Stock at an average cost of $38.69 per share, or an aggregate cost of $3.1 billion, of which $3.0 billion was paid during the period. All share repurchases were funded through available cash and commercial paper issuances. Through September 30, 2015, we have repurchased $7.7 billion of shares ($3.1 billion in the first nine months of 2015, $1.9 billion in 2014 and $2.7 billion in 2013) and we have $6.0 billion in remaining share repurchase capacity.