Equity-Based Compensation (Schedule Of Stock Option Activity) (Details) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding - beginning of year	26,851,964
Options Granted	2,238,378
Options Exercised	(349,348)
Options Forfeited/Expired	(6,813,634)
Options Outstanding - end of period	21,927,360
Options Exercisable - end of period	18,046,774
Shares vested or expected to vest	21,658,295
Weighted Average Exercise Price, Outstanding - beginning of year	$ 11.18
Weighted Average Exercise Price, Granted	$ 5.27
Weighted Average Exercise Price, Exercised	$ 1.48
Weighted Average Exercise Price, Forfeited/expired	$ 20.86
Weighted Average Exercise Price, Outstanding - end of period	$ 7.72
Weighted Average Exercise Price, Exercisable - end of period	$ 8.09
Weighted Average Exercise Price, Shares vested or expected to vest	$ 7.74
Weighted Average Remaining Contractual Term on Outstanding Options at period end, in years	4.3
Weighted Average Remaining Contractual Term on Exercisable Options at period end, in years	3.3
Weighted Average Remaining Contractual Term on Shares vested or expected to vest at period end, in years	4.2
Aggregate Intrinsic Value of Outstanding Options - end of period	$ 1.0
Aggregate Intrinsic Value of Exercisable - end of period	0.7
Aggregate Intrinsic Value of Shares vested or expected to vest - end of period	$ 0.9
Cash-Settled SARs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Price, Exercised	$ 4.12