Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Stock-Based Compensation [Abstract]

Weighted average assumptions used to determine the fair value of option grants

	Year Ended December 31,
	2011			2010			2009
Dividend yield		0.75	%		0.75	%		3.50	%
Volatility:
Near term		36.0	%		37.0	%		74.0	%
Long term		44.0	%		45.0	%		43.0	%
Expected life		6 yrs.			6 yrs.			7 yrs.
Yield curve:
6 month		0.18	%		0.19	%		0.45	%
1 year		0.25	%		0.32	%		0.72	%
3 year		1.18	%		1.36	%		1.40	%
5 year		2.13	%		2.30	%		1.99	%
10 year		3.42	%		3.61	%		3.02	%

Stock option activity

	Options (In  Millions)			Weighted  Average Exercise Price Per Share
Outstanding at December 31, 2010		8.7		$	29.72
Granted		0.3			61.28
Exercised		(2.3	)		31.01
Forfeited, Canceled or Expired		—			—
Outstanding at December 31, 2011		6.7		$	30.70
Exercisable at December 31, 2011		3.6		$	39.53

Restricted stock and units activity

	Number of Restricted Stock and Units			Weighted Average Grant Date Value Per Share
	(In Millions)
Outstanding at December 31, 2010		8.5		$	28.11
Granted		1.3			60.77
Lapse of restrictions		(2.7	)		42.71
Forfeited or Canceled		(0.2	)		27.24
Outstanding at December 31, 2011		6.9		$	29.54