Stock-Based Compensation Plans (Details 6) (USD $)	12 Months Ended
	Dec. 31, 2013
Summary of options outstanding by plan and range of exercise price
Shares	2,359,126
Weighted Average Exercise Price	$ 42.59
Remaining Contractual Life	3 years 7 months 6 days
$20.02-$35.44
Summary of options outstanding by plan and range of exercise price
Options outstanding, Exercise Prices, Lower limit	$ 20.02
Options outstanding, Exercise Prices, Upper limit	$ 35.44
Shares	66,125
Weighted Average Exercise Price	$ 22.83
Remaining Contractual Life	5 months 19 days
$35.45-$38.75
Summary of options outstanding by plan and range of exercise price
Options outstanding, Exercise Prices, Lower limit	$ 35.45
Options outstanding, Exercise Prices, Upper limit	$ 38.75
Shares	1,143,389
Weighted Average Exercise Price	$ 36.78
Remaining Contractual Life	6 years 3 months 11 days
$38.76-$53.04
Summary of options outstanding by plan and range of exercise price
Options outstanding, Exercise Prices, Lower limit	$ 38.76
Options outstanding, Exercise Prices, Upper limit	$ 53.04
Shares	835,039
Weighted Average Exercise Price	$ 38.81
Remaining Contractual Life	2 months 9 days
$53.05-$81.19
Summary of options outstanding by plan and range of exercise price
Options outstanding, Exercise Prices, Lower limit	$ 53.05
Options outstanding, Exercise Prices, Upper limit	$ 81.19
Shares	314,573
Weighted Average Exercise Price	$ 77.85
Remaining Contractual Life	3 years 6 months 22 days