Stock-Based Associate Compensation Plans (Options Outstanding And Exercisable) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding shares	7,937,000	9,357,000
Options outstanding weighted-average remaining contractual life	4 years 1 month 6 days
Options outstanding weighted-average exercise price	$ 37.34	$ 36.71
Options exercisable shares	6,594,000
Options exercisable shares weighted-average exercise price	$ 38.20
Range 1 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of per-share exercise prices, lower limit	$ 25.00
Range of per-share exercise prices, upper limit	$ 29.99
Options outstanding shares	1,359,000.0
Options outstanding weighted-average remaining contractual life	6 years 4 months 21 days
Options outstanding weighted-average exercise price	$ 26.58
Options exercisable shares	1,087,000.0
Options exercisable shares weighted-average exercise price	$ 26.57
Range 2 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of per-share exercise prices, lower limit	$ 30.00
Range of per-share exercise prices, upper limit	$ 34.99
Options outstanding shares	1,355.0
Options outstanding weighted-average remaining contractual life	5 years 22 days
Options outstanding weighted-average exercise price	$ 33.40
Options exercisable shares	797,000.0
Options exercisable shares weighted-average exercise price	$ 32.99
Range 3 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of per-share exercise prices, lower limit	$ 35.00
Range of per-share exercise prices, upper limit	$ 39.99
Options outstanding shares	2,328,000.0
Options outstanding weighted-average remaining contractual life	3 years 11 months 12 days
Options outstanding weighted-average exercise price	$ 38.08
Options exercisable shares	1,815,000.0
Options exercisable shares weighted-average exercise price	$ 38.77
Range 4 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of per-share exercise prices, lower limit	$ 40.00
Range of per-share exercise prices, upper limit	$ 44.99
Options outstanding shares	1,740,000.0
Options outstanding weighted-average remaining contractual life	2 years 6 months 11 days
Options outstanding weighted-average exercise price	$ 42.56
Options exercisable shares	1,740,000.0
Options exercisable shares weighted-average exercise price	$ 42.56
Range 5 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of per-share exercise prices, lower limit	$ 45.00
Range of per-share exercise prices, upper limit	$ 49.99
Options outstanding shares	1,155,000.0
Options outstanding weighted-average remaining contractual life	2 years 11 months 5 days
Options outstanding weighted-average exercise price	$ 45.26
Options exercisable shares	1,155,000.0
Options exercisable shares weighted-average exercise price	$ 45.26