Share-based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2013

Share-based compensation plans [Abstract]

Fair value of options calculation assumptions [Table Text Block]

				Nine Months
				Ended September 30,
Options Granted				2012
Number of shares underlying options, in thousands						389
Weighted-average exercise price per share			$			22.47
Assumptions used to estimate fair value
	Expected dividend yield
		Weighted-average(a):				1.8%
	Expected volatility(b):
		Weighted-average				40%
	Risk-free interest rate(c):
		Weighted-average				0.7%
		Range		0.4%	–	0.9%
	Expected term in years(d):
		Weighted-average				4.3
		Range		3.3	–	5.3
Weighted-average fair value estimates at grant date:
	In millions		$			2.5
	Fair value per share		$			6.30

Nonvested share activity [Table Text Block]

Nonvested Share Activity
	Number of Shares					Weighted-Average
	2013	2005	Directors’			Grant-Date
(In thousands of shares, except per share amounts)	Plan	Plan	Plan	Total		Fair Value(a)
Balance as of December 31, 2012	-	407.9	23.0	430.9	$	23.19
Granted	492.4	-	19.2	511.6		26.04
Cancelled awards	(8.2)	(36.2)	-	(44.4)		23.85
Vested	-	(144.1)	(23.0)	(167.1)		23.09
Balance as of September 30, 2013	484.2	227.6	19.2	731.0	$	25.17