Share-based and Deferred Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2011

Compensation Related Costs [Abstract]

Weighted-average assumptions used in the Black-Scholes option-pricing model

We estimated the fair value of each stock option and SAR award as of the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:

	2011		2010		2009
Risk-free interest rate	2.0	%	2.4	%	1.9	%
Expected term (years)	5.9		6.0		5.9
Expected volatility	28.2	%	30.0	%	32.3	%
Expected dividend yield	2.0	%	2.5	%	2.6	%

Summary of award activity

Stock Options and SARs

	Shares (in thousands)			Weighted-Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value (in millions)
Outstanding at the beginning of the year	36,438			$	26.91
Granted	5,023			49.59
Exercised	(6,645	)		20.33
Forfeited or expired	(1,308	)		35.52
Outstanding at the end of the year	33,508		(a)	$	31.28	5.96	$	929
Exercisable at the end of the year	18,709			$	26.00	4.48	$	618

(a) Outstanding awards include 8,161 options and 25,347 SARs with average exercise prices of $21.56 and $34.41, respectively.

Impact on net income

The components of share-based compensation expense and the related income tax benefits are shown in the following table:

	2011		2010		2009
Options and SARs	$	49	$	40	$	48
Restricted Stock Units	5		5		7
Performance Share Units	5		2		1
Total Share-based Compensation Expense	$	59	$	47	$	56
Deferred Tax Benefit recognized	$	18	$	13	$	17
EID compensation expense not share-based	$	2	$	4	$	4