Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2011

Incentive Plans [Abstract]

Summary Of Stock Option Program

	Options (a,b)			Weighted Average Exercise Price		Weighted Average Remaining Life (years)		Aggregate Intrinsic Value (thousands)
Outstanding at December 31, 2008		25,093,122		$	39.68		3.66	$	0
Forfeited		(558,470	)		44.40
Expired		(2,317,595	)		42.74
Outstanding at December 31, 2009		22,217,057			39.24		2.73		0
Forfeited		(43,068	)		34.36
Expired		(3,928,736	)		46.29
Outstanding at December 31, 2010		18,245,253			37.73		2.30		0
Exercised		(1,850	)		32.54
Forfeited		(21,070	)		35.21
Expired		(2,665,547	)		35.45
Outstanding at December 31, 2011		15,556,786		$	38.13		1.55	$	0

(a) The table does not include Continuity Award tandem stock options described below. No fair market value is assigned to these options under ASC 718. The tandem restricted shares accompanying these options are expensed over their vesting period.

(b) The table includes options outstanding under an acquired company plan under which options may no longer be granted.

Assumptions Used To Determine Compensation Cost For Market Condition Component Of Performance Share Program

	Twelve Months Ended December 31, 2011
Expected volatility	34.35% - 62.58%
Risk-free interest rate	0.12% - 0.99%

Summary Of Performance Restricted Share Activity

	Shares/Units			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2008		6,254,256		$	32.69
Granted		4,102,197			19.10
Shares issued		(3,576,109	)		33.21
Forfeited		(714,294	)		23.41
Outstanding at December 31, 2009		6,066,050			24.28
Granted		3,842,626			28.93
Shares issued		(2,807,388	)		33.25
Forfeited		(288,694	)		21.83
Outstanding at December 31, 2010		6,812,594			23.31
Granted		4,314,376			28.04
Shares issued (a)		(2,565,971	)		32.43
Forfeited		(500,940	)		25.07
Outstanding at December 31, 2011		8,060,059		$	22.83

(a) Includes 187,460 shares/units related to retirements or terminations that are held for payout until the end of the performance period.

Summary Of Activity Of Executive Continuity And Restricted Stock Award Program

	Shares			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2008		102,000		$	35.11
Granted		5,000			11.80
Shares issued		(4,000	)		28.74
Forfeited		(20,000	)		35.49
Outstanding at December 31, 2009		83,000			33.93
Granted		177,000			25.63
Shares issued		(92,500	)		30.69
Outstanding at December 31, 2010		167,500			26.95
Granted		21,500			27.01
Shares issued		(55,083	)		24.84
Forfeited		(5,000	)		26.78
Outstanding at December 31, 2011		128,917		$	27.86

Stock-Based Compensation Expense And Related Income Tax Benefits

In millions	2011		2010		2009
Total stock-based compensation expense (included in selling and administrative expense)	$	84	$	73	$	100
Income tax benefits related to stock-based compensation	$	87	$	75	$	28