Share-Based Compensation And Other Compensation Arrangements (Tables)

The share-based plans expense and related income tax benefit were as follows:



Years ended December 31,	2012		2011		2010
Stock options		$85		$88		$96
Restricted stock units and other awards	108		98		83
ShareValue Trust					36
Share-based plans expense		$193		$186		$215
Income tax benefit		$75		$73		$83

Stock option activity for the year ended December 31, 2012 is as follows:



	Shares	Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Number of shares under option:
Outstanding at beginning of year	31,431,395		$68.52
Granted	6,257,436	75.35
Exercised	(2,801,568)	43.00
Forfeited	(1,097,393)	71.49
Expired	(125,852)	70.74
Outstanding at end of year	33,664,018		$71.81	6.28		$232
Exercisable at end of year	23,121,336		$71.55	5.18		$200

The fair values of options were estimated using the Black-Scholes option-pricing model with the following assumptions:



Grant Year	Grant Date	Expected Life	Expected Volatility		Expected Dividend Yield		Risk Free Interest Rate		Weighted-Average Grant Date Fair Value Per Share
2012	2/27/2012	6 years	29.9	%	2.4	%	1.1	%		$16.89
2011	2/22/2011	6 years	29.8	%	2.3	%	2.5	%		$17.96
2010	2/22/2010	6 years	31.5	%	3.0	%	2.9	%		$15.70

Stock unit activity for the year ended December 31, 2012 is as follows:



	Incentive Program Restricted Stock Units			Other Restricted Stock Units
Number of units:
Outstanding at beginning of year	4,687,234			1,494,168
Granted	1,402,642			357,006
Dividends	100,269			31,576
Forfeited	(230,338		)	(84,578		)
Distributed	(2,062,358		)	(546,983		)
Outstanding at end of year	3,897,449			1,251,189
Unrecognized compensation cost		$101			$29
Weighted average remaining contractual life (years)	1.8			2.7