Share-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2014

Share-Based Compensation Plans [Abstract]

Schedule Of Changes In Stock Options

	Year Ended December 31, 2014
	Number of shares (thousands)	Weighted-average exercise price	Weighted-average remaining contractual term (years)	Aggregate intrinsic value (millions)
Option shares outstanding at beginning of period	2,204.6	$ 35.60
Options granted	318.9	53.93
Option shares exercised	(640.8)	(27.80)		$ 17.1
Options forfeited	(228.8)	(48.03)
Options expired	(52.7)	(43.49)
Option shares outstanding at end of period	1,601.2	$ 40.33	6.9	$ 18.2
Option shares exercisable at end of period	1,015.3	34.12	6.0	$ 17.3
Option shares vested and expected to vest	1,579.6	40.17	6.9	$ 18.2

	Year Ended December 31, 2013
	Number of shares (thousands)	Weighted-average exercise price	Weighted-average remaining contractual term (years)	Aggregate intrinsic value (millions)
Option shares outstanding at beginning of period	2,311.0	$ 30.05
Options granted	382.4	51.75
Option shares exercised	(438.3)	(19.65)		$ 15.1
Options forfeited	(41.3)	(42.81)
Options expired	(9.2)	(40.40)
Option shares outstanding at end of period	2,204.6	$ 35.60	7.0	$ 48.5
Option shares exercisable at end of period	1,255.9	28.59	6.1	$ 36.4
Option shares vested and expected to vest	2,038.6	34.89	6.9	$ 46.3

Schedule Of Weighted-Average Assumptions

	2014	2013	2012
Weighted-average grant date fair value of options granted
(dollars per option)	$ 24.93	$ 21.62	$ 20.29
Assumptions
Risk free rate of return	1.9%	1.2%	1.2%
Expected volatility	46.5%	42.4%	41.4%
Expected term (in years)	6.0	6.0	6.1
Expected dividend yield	0.0%	0.0%	0.0%

Schedule Of Restricted Stock And Restricted Stock Units Activity

	Non-Vested Stock Awards
	Number of shares	Weighted-average fair value at grant date
December 31, 2012	127,886	$ 43.32
Granted	59,356	51.97
Vested	(25,794)	(38.10)
Forfeited	(7,871)	(47.19)
December 31, 2013	153,577	$ 47.34
Granted	93,711	52.57
Vested	(61,902)	(41.61)
Forfeited	(9,784)	(52.08)
December 31, 2014	175,602	$ 51.89

Schedule Of Performance Award Activity

	Non-Vested Performance Stock Awards
	Number of shares	Weighted-average fair value at grant date
December 31, 2012	293,475	$ 45.24
Granted	139,597	51.80
Vested	(19,979)	(37.54)
Forfeited	(22,412)	(48.14)
December 31, 2013	390,681	$ 47.81
Granted	129,858	53.88
Vested	(78,125)	(41.69)
Forfeited	(108,051)	(46.37)
December 31, 2014	334,363	$ 52.07