Stock Benefit Plans (The Status Of Stock Option Awards) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2012
Options, Outstanding [Roll Forward]
Number of options outstanding at January 1, 2014 (in shares)	22,567,866	32,045,793
Number of Options Granted (in shares)	1,716,637
Number of Options Exercised (in shares)	(6,060,823)
Number of Options Forfeited (in shares)	(149,501)
Number of options Expired (in shares)	(79,097)
Number of options outstanding at December, 31 2014 (in shares)	17,995,082	32,045,793
Options vested or expected to vest at December 31, 2014 (in shares)	17,709,073
Options exercisable at December 31, 2014 (in shares)	12,440,781
Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price per option at January 1, 2014	$ 29.29
Weighted Average Exercise Price per option Granted	$ 48.00
Weighted Average Exercise Price per option Exercised	$ 29.39
Weighted Average Exercise Price per Option Forfeited	$ 35.76
Weighted Average Exercise Price per Option Expired	$ 32.98
Weighted Average Exercise Price per option at December 31, 2014	$ 30.97
Weighted Average Exercise Price per option expected to vest	$ 30.90
Weighted Average Exercise Price per option exercisable at closing	$ 27.74
Weighted Average Remaining Contractual Term at closing, years	5 years 1 month 6 days
Weighted Average Remaining Contractual Term expected to vest, years	5 years 1 month 6 days
Weighted Average Remaining Contractual Term exercisable at closing, years	3 years 10 months 24 days
Aggregate Intrinsic Value at closing	$ 488,937
Aggregate Intrinsic Value expected to vest	482,479
Aggregate Intrinsic Value exercisable at closing	$ 378,296