Retirement Benefits (Target Allocation Of The Plans' Asset Categories) (Details)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%		100.00%
Pension Benefits | Cash And Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	0.00%
Maximum Target Allocation	5.00%
Defined Benefit Plan, Actual Plan Asset Allocations	2.00%		2.00%
Pension Benefits | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	50.00%
Maximum Target Allocation	60.00%
Defined Benefit Plan, Actual Plan Asset Allocations	58.00%		54.00%
Pension Benefits | U.S. large capitalization
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	29.00%
Maximum Target Allocation	39.00%
Defined Benefit Plan, Actual Plan Asset Allocations	36.00%		34.00%
Pension Benefits | U.S. small and mid-capitalization
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	2.00%
Maximum Target Allocation	12.00%
Defined Benefit Plan, Actual Plan Asset Allocations	8.00%		7.00%
Pension Benefits | International and emerging markets
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	9.00%
Maximum Target Allocation	19.00%
Defined Benefit Plan, Actual Plan Asset Allocations	14.00%		13.00%
Pension Benefits | Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	35.00%
Maximum Target Allocation	45.00%
Defined Benefit Plan, Actual Plan Asset Allocations	36.00%		39.00%
Pension Benefits | Real estate
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	0.00%
Maximum Target Allocation	9.00%
Defined Benefit Plan, Actual Plan Asset Allocations	4.00%		4.00%
Pension Benefits | Private equity
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	0.00%
Maximum Target Allocation	4.00%
Defined Benefit Plan, Actual Plan Asset Allocations	1.00%	[1]	1.00%
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%		100.00%
Postretirement Benefits | Cash And Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	0.00%
Maximum Target Allocation	10.00%
Defined Benefit Plan, Actual Plan Asset Allocations	4.00%		4.00%
Postretirement Benefits | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	55.00%
Maximum Target Allocation	65.00%
Defined Benefit Plan, Actual Plan Asset Allocations	63.00%		62.00%
Postretirement Benefits | U.S. large capitalization
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	33.00%
Maximum Target Allocation	43.00%
Defined Benefit Plan, Actual Plan Asset Allocations	41.00%		40.00%
Postretirement Benefits | U.S. small and mid-capitalization
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	3.00%
Maximum Target Allocation	13.00%
Defined Benefit Plan, Actual Plan Asset Allocations	8.00%		8.00%
Postretirement Benefits | International
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	10.00%
Maximum Target Allocation	20.00%
Defined Benefit Plan, Actual Plan Asset Allocations	14.00%		14.00%
Postretirement Benefits | Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Minimum Target Allocation	30.00%
Maximum Target Allocation	40.00%
Defined Benefit Plan, Actual Plan Asset Allocations	33.00%		34.00%

[1] (a)Less than 1% of plan assets.