Pension And Other Postretirement Benefit Plans Pension And Other Postretirement Benefit Plans (Narrative) (Details) $ in Millions	9 Months Ended
	Dec. 31, 2015 USD ($)
Pension and Other Postretirement Benefits [Line Items]
Contributions to qualified and non-qualified pension plans	$ 10.6
Expected additional contributions in the current fiscal year	1.8
ERISA-regulated U.S. plan [Member]
Pension and Other Postretirement Benefits [Line Items]
Expected additional contributions in the current fiscal year	1.4
Non-ERISA regulated and Other Plans [Member]
Pension and Other Postretirement Benefits [Line Items]
Expected additional contributions in the current fiscal year	$ 0.4