Pension And Other Postretirement Benefits (Components Of The Plans' Net Periodic Benefits Cost) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
|
| Pension Plan | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Service Cost | $ 1.3 | $ 1.3 |
| Interest cost | 3.2 | 3.1 |
| Expected return on assets | (5.5) | (6.1) |
| Amortization of prior service credit | (0.2) | (0.2) |
| Recognized actuarial loss | 2.5 | 2.0 |
| Total Net Periodic Benefits Cost | 1.3 | 0.1 |
| Other Postretirement Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Service Cost | 0.2 | 0.3 |
| Interest cost | 1.0 | 1.0 |
| Expected return on assets | (3.8) | (4.3) |
| Amortization of prior service credit | 0.0 | 0.0 |
| Recognized actuarial loss | 0.0 | 0.0 |
| Total Net Periodic Benefits Cost | $ (2.6) | $ (3.0) |