Pension and Postretirement Plans (Asset Allocation) (Details 2) - Defined Benefit Pension Plans [Member] |
Mar. 31, 2019 |
Dec. 31, 2018 |
---|---|---|
Defined Benefit Plan Disclosure [Line Items] | ||
Defined Benefit Plan Assets Allocation (Percent) | 100.00% | 100.00% |
U.S. equities [Member] | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Defined Benefit Plan Assets Allocation (Percent) | 53.00% | 53.00% |
U.S. stock index fund [Member] | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Defined Benefit Plan Assets Allocation (Percent) | 28.00% | 28.00% |
U.S. fixed income [Member] | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Defined Benefit Plan Assets Allocation (Percent) | 13.00% | 13.00% |
International equities [Member] | ||
Defined Benefit Plan Disclosure [Line Items] | ||
Defined Benefit Plan Assets Allocation (Percent) | 6.00% | 6.00% |