Stock Compensation Plans (Weighted-average remaining contractual lives of stock options outstanding) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding - number outstanding	12,887
Options outstanding - weighted average per share exercise price	$ 23
Options exercisable - number exercisable	12,402
Options exercisable - weighted average per share exercise price	$ 23
Weighted average remaining contractual term	3 years 7 months 6 days
$0.01 to $11.00 [Member]
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding - number outstanding	1,665
Options outstanding - weighted average per share exercise price	$ 10
Options exercisable - number exercisable	1,444
Options exercisable - weighted average per share exercise price	$ 10
Exercise price range, lower range limit	$ 0.01
Exercise price range, upper range limit	$ 11.00
Weighted average remaining contractual term	4 years 9 months 25 days
$11.01 to $18.00 [Member]
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding - number outstanding	4,659
Options outstanding - weighted average per share exercise price	$ 12
Options exercisable - number exercisable	4,395
Options exercisable - weighted average per share exercise price	$ 12
Exercise price range, lower range limit	$ 11.01
Exercise price range, upper range limit	$ 18.00
Weighted average remaining contractual term	5 years 6 months
$18.01 to $25.00 [Member]
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding - number outstanding	480
Options outstanding - weighted average per share exercise price	$ 23
Options exercisable - number exercisable	480
Options exercisable - weighted average per share exercise price	$ 23
Exercise price range, lower range limit	$ 18.01
Exercise price range, upper range limit	$ 25.00
Weighted average remaining contractual term	1 year 2 months 12 days
$25.01 to $35.00 [Member]
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding - number outstanding	3,894
Options outstanding - weighted average per share exercise price	$ 31
Options exercisable - number exercisable	3,893
Options exercisable - weighted average per share exercise price	$ 31
Exercise price range, lower range limit	$ 25.01
Exercise price range, upper range limit	$ 35.00
Weighted average remaining contractual term	2 years
$35.01 to $60.00 [Member]
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding - number outstanding	2,189
Options outstanding - weighted average per share exercise price	$ 41
Options exercisable - number exercisable	2,190
Options exercisable - weighted average per share exercise price	$ 41
Exercise price range, lower range limit	$ 35.01
Exercise price range, upper range limit	$ 60.00
Weighted average remaining contractual term	1 year 9 months 18 days