Postretirement Benefit Plans (Details 8)	9 Months Ended
	Sep. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Actual Asset Allocation	100.00%
Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Asset Allocation	100.00%
Postretirement Benefit Plans [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Asset Allocation	50.00%
Postretirement Benefit Plans [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Asset Allocation	50.00%
Postretirement Benefit Plans [Member] | Minimum [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Current Target Allocation	45.00%
Postretirement Benefit Plans [Member] | Minimum [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Current Target Allocation	45.00%
Postretirement Benefit Plans [Member] | Maximum [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Current Target Allocation	55.00%
Postretirement Benefit Plans [Member] | Maximum [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Current Target Allocation	55.00%