Pensions And Other Employee Benefits Plans (Pension Plans' Actual And Targeted Asset Allocations) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Actual Allocation	100.00%	100.00%
Target Allocation	100.00%
Target allocation range, maximum	100.00%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Allocation	59.00%	58.00%
Target Allocation	60.00%
Target allocation range, maximum	70.00%
Target allocation range, minimum	50.00%
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Allocation	41.00%	42.00%	[1]
Target Allocation	40.00%
Target allocation range, maximum	50.00%
Target allocation range, minimum	30.00%

[1] The pension plan invested in other partnerships that have reached their end of life and have closed and are unwinding their holdings. Mainly partnerships that provided mezzanine financing.