20072006
Defined Benefit Plans [Domain]Pension Plans, Defined Benefit [Member]United States Pension Plans, Qualified, Defined Benefit, [Member]Defined Benefit Plan Disclosure [Line Items]Defined Benefit Plan, Information about Plan Assets [Abstract]Defined Benefit Plan, Assets, Target Allocations [Abstract]
Defined Benefit Plan, Equity Securities, Global,Target Allocation46%
Defined Benefit Plan, Equity Securities, Private, Target Allocation13%
Defined Benefit Plan, Fixed Income, Target Allocation24%
Defined Benefit Plan, Absolute Return, Target Allocation12%
Defined Benefit Plan, Commodities, Target Allocation5%
Defined Benefit Plan, Cash, Target Allocation0%
Defined Benefit Plan, Target Allocations, Total100%
Defined Benefit Plan, Weighted-Average Asset Allocations [Abstract]
Defined Benefit Plan, Equity Securities, Global45%57%
Defined Benefit Plan, Equity Securities, Private16%12%
Defined Benefit Plan, Fixed Income23%19%
Defined Benefit Plan, Absolute Return11%9%
Defined Benefit Plan, Commodities4%2%
Defined Benefit Plan, Cash1%1%
Defined Benefit Plan, Weighted-Average Asset Allocation, Total100%100%
Other Postretirement Benefit Plans, Defined Benefit [Member]United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]Defined Benefit Plan Disclosure [Line Items]Defined Benefit Plan, Information about Plan Assets [Abstract]Defined Benefit Plan, Assets, Target Allocations [Abstract]
Defined Benefit Plan, Equity Securities, Global,Target Allocation69%
Defined Benefit Plan, Equity Securities, Private, Target Allocation18%
Defined Benefit Plan, Fixed Income, Target Allocation10%
Defined Benefit Plan, Absolute Return, Target Allocation2%
Defined Benefit Plan, Commodities, Target Allocation1%
Defined Benefit Plan, Cash, Target Allocation0%
Defined Benefit Plan, Target Allocations, Total100%
Defined Benefit Plan, Weighted-Average Asset Allocations [Abstract]
Defined Benefit Plan, Equity Securities, Global75%79%
Defined Benefit Plan, Equity Securities, Private13%10%
Defined Benefit Plan, Fixed Income9%10%
Defined Benefit Plan, Absolute Return2%0%
Defined Benefit Plan, Commodities1%0%
Defined Benefit Plan, Cash0%1%
Defined Benefit Plan, Weighted-Average Asset Allocation, Total100%100%