Share-Based Compensation Plans (Share Options Outstanding And Exercisable) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number Outstanding	1,190,544
Options Outstanding, Weighted Average-Remaining Contractual Life	5 years 9 months 18 days
Options Outstanding, Weighted Average Exercise Price	$ 85.44
Options Exercisable, Number Exercisable	579,417
Options Exercisable, Weighted-Average Exercise Price	$ 86.33
$ 66.0780 - $77.0910 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Ranges of Exercise Prices, Lower range limit	$ 66.0780
Ranges of Exercise Prices, Upper range limit	$ 77.0910
Options Outstanding, Number Outstanding	281,410
Options Outstanding, Weighted Average-Remaining Contractual Life	4 years 3 months 18 days
Options Outstanding, Weighted Average Exercise Price	$ 72.22
Options Exercisable, Number Exercisable	186,810
Options Exercisable, Weighted-Average Exercise Price	$ 72.47
$ 77.0911 - $88.1040 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Ranges of Exercise Prices, Lower range limit	$ 77.0911
Ranges of Exercise Prices, Upper range limit	$ 88.1040
Options Outstanding, Number Outstanding	427,290
Options Outstanding, Weighted Average-Remaining Contractual Life	6 years 8 months 12 days
Options Outstanding, Weighted Average Exercise Price	$ 85.72
Options Exercisable, Number Exercisable	139,490
Options Exercisable, Weighted-Average Exercise Price	$ 85.52
$ 88.1041 - $99.1170 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Ranges of Exercise Prices, Lower range limit	$ 88.1041
Ranges of Exercise Prices, Upper range limit	$ 99.1170
Options Outstanding, Number Outstanding	386,740
Options Outstanding, Weighted Average-Remaining Contractual Life	6 years 3 months 18 days
Options Outstanding, Weighted Average Exercise Price	$ 91.23
Options Exercisable, Number Exercisable	158,240
Options Exercisable, Weighted-Average Exercise Price	$ 95.38
$ 99.1171 - $110.1300 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Ranges of Exercise Prices, Lower range limit	$ 99.1171
Ranges of Exercise Prices, Upper range limit	$ 110.1300
Options Outstanding, Number Outstanding	95,104
Options Outstanding, Weighted Average-Remaining Contractual Life	4 years 1 month 6 days
Options Outstanding, Weighted Average Exercise Price	$ 99.75
Options Exercisable, Number Exercisable	94,877
Options Exercisable, Weighted-Average Exercise Price	$ 99.73