Retirement Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Dec. 31, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Cost Recognized	$ 15.2	$ 15.3
Other Postretirement Benefits Payable	$ 14.9		$ 14.9	$ 24.5
Retirement Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated amounts of contributions expected to be paid to the plans in next fiscal year			15.5
Pension Contributions			7.8
Medical Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated amounts of contributions expected to be paid to the plans in next fiscal year			0.0
Pension Contributions			$ 0.0