Note 11. Stock Plans

Stock Options:

Stock option activity is reflected below:



	Shares Subject to Option		Weighted- Average Exercise or Grant Price Per Share	Average Remaining Contractual Term	Aggregate Intrinsic Value
Balance at January 1, 2018	48,434,655		$29.92	5 years	$	626	million
Annual grant to eligible employees	5,666,530		43.51
Additional options issued	82,720		40.82
Total options granted	5,749,250		43.47
Options exercised ⁽¹⁾	(4,541,932	)	25.60		$	81	million
Options canceled	(541,994	)	38.39
Balance at June 30, 2018	49,099,979		31.81	6 years	$	478	million


(1)	Cash received from options exercised was $31 million in the three months and $116 million in the six months ended June 30, 2018. The actual tax benefit realized and recorded in the provision for income taxes for the tax deductions from the option exercises totaled $1 million in the three months and $9 million in the six months ended June 30, 2018.

Performance Share Units and Other Stock-Based Awards:

Our performance share unit, deferred stock unit and historically granted restricted stock activity is reflected below:



	Number of Shares		Grant Date	Weighted-Average Fair Value Per Share ⁽³⁾	Weighted-Average Aggregate Fair Value ⁽³⁾
Balance at January 1, 2018	7,669,705			$39.74
Annual grant to eligible employees:			Feb 22, 2018
Performance share units	1,048,770			51.23
Deferred stock units	788,310			43.51
Additional shares granted ⁽¹⁾	306,426		Various	40.97
Total shares granted	2,143,506			46.92	$	101	million
Vested ⁽²⁾	(2,162,663	)		38.33	$	83	million
Forfeited ⁽²⁾	(352,565	)		40.10
Balance at June 30, 2018	7,297,983			42.25


(1)	Includes performance share units and deferred stock units.


(2)	Includes performance share units, deferred stock units and historically granted restricted stock. The actual tax benefit realized and recorded in the provision for income taxes for the tax deductions from the shares vested totaled less than $1 million in the three months and $4 million in the six months ended June 30, 2018.

(3)

The grant date fair value of performance share units is determined based on the Monte Carlo simulation model for the market-based total shareholder return component and the closing market price of the Company’s stock on the grant date for performance-based components. The Monte Carlo simulation model incorporates the probability of achieving the total shareholder return market condition. Compensation expense is recognized using the grant date fair values regardless of whether the market condition is achieved, so long as the requisite service has been provided.

Share Repurchase Program:

Between 2013 and 2017, our Board of Directors authorized the repurchase of a total of $13.7 billion of our Common Stock through December 31, 2018. On January 31, 2018, our Finance Committee, with authorization delegated from our Board of Directors, approved an increase of $6.0 billion in the share repurchase program, raising the authorization to $19.7 billion of Common Stock repurchases, and extended the program through December 31, 2020. Repurchases under the program are determined by management and are wholly discretionary. Prior to January 1, 2018, we had repurchased $13.0 billion of Common Stock pursuant to this authorization. During the six months ended June 30, 2018, we repurchased approximately 27.6 million shares of Common Stock at an average cost of $41.65 per share, or an aggregate cost of approximately $1.2 billion, all of which was paid during the period. All share repurchases were funded through available cash and commercial paper issuances. As of June 30, 2018, we have $5.5 billion in remaining share repurchase capacity.