Stock Benefit Plans (The Status Of Stock Option Awards) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Stock Benefit Plans [Abstract]
Number of options outstanding at January 1, 2011	43,386,136
Number of Options Granted	2,827,655
Number of Options Exercised	4,255,079
Number of Options Canceled or exchanged	0
Number of Options Forfeited	294,840
Number of options Expired	2,768,763
Number of options outstanding at December 31, 2011	38,895,109
Options vested or expected to vest at December 31, 2011	38,030,022
Options exercisable at December 31, 2011	12,913,460
Weighted Average Exercise Price per option at January 1, 2011	$ 29.33
Weighted Average Exercise Price per option Granted	$ 30.60
Weighted Average Exercise Price per option Excercized	$ 26.26
Weighted Average Exercise Price per option Canceled or exchanged	$ 0.00
Weighted Average Exercise Price per Option Forfeited	$ 25.46
Weighted Average Exercise Price per Option Expired	$ 37.12
Weighted Average Exercise Price per option at December 31, 2011	$ 29.21
Weighted Average Exercise Price per option expected to vest	$ 29.38
Weighted Average Exercise Price per option exercisable at closing	$ 31.47
Weighted Average Remaining Contractual Term at closing, years	4.6
Weighted Average Remaining Contractual Term expected to vest, years	4.8
Weighted Average Remaining Contractual Term exercisable at closing, years	3.0
Aggregate Intrinsic Value at closing	$ 155,159
Aggregate Intrinsic Value expected to vest	221,216
Aggregare Intrinsic Value execisable at closing	$ 58,228