Employee Benefit Plans (Fair Values Of Pension Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	$ 456.0	$ 484.0
Cash
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	3.6	6.7
Equities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	15.8	19.2
Non-U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	38.8	44.3
Floating rate income
Defined Benefit Plan Disclosure [Line Items]
Total plan assets		35.7
Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	3.4	18.8
United States equity
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	53.1	62.6
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	76.4	77.0
US Treasury Securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	87.3	74.6
Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	172.8	129.9
Other
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	4.8	15.2
Quoted Prices in Active Markets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	283.4	305.2
Quoted Prices in Active Markets (Level 1) | Cash
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	3.6	6.7
Quoted Prices in Active Markets (Level 1) | Equities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	15.8	19.2
Quoted Prices in Active Markets (Level 1) | Non-U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	38.8	44.3
Quoted Prices in Active Markets (Level 1) | Floating rate income
Defined Benefit Plan Disclosure [Line Items]
Total plan assets		35.7
Quoted Prices in Active Markets (Level 1) | Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Quoted Prices in Active Markets (Level 1) | United States equity
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Quoted Prices in Active Markets (Level 1) | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Quoted Prices in Active Markets (Level 1) | US Treasury Securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	87.3	74.6
Quoted Prices in Active Markets (Level 1) | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	137.9	124.7
Quoted Prices in Active Markets (Level 1) | Other
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	167.8	163.6
Significant Other Observable Inputs (Level 2) | Cash
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Equities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Non-U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Floating rate income
Defined Benefit Plan Disclosure [Line Items]
Total plan assets		0.0
Significant Other Observable Inputs (Level 2) | Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	3.4	18.8
Significant Other Observable Inputs (Level 2) | United States equity
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	53.1	62.6
Significant Other Observable Inputs (Level 2) | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	76.4	77.0
Significant Other Observable Inputs (Level 2) | US Treasury Securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	34.9	5.2
Significant Other Observable Inputs (Level 2) | Other
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	4.8	15.2
Significant Unobservable Inputs (Level 3) | Cash
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) | Equities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) | Non-U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) | Floating rate income
Defined Benefit Plan Disclosure [Line Items]
Total plan assets		0.0
Significant Unobservable Inputs (Level 3) | Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) | United States equity
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) | US Treasury Securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) | Other
Defined Benefit Plan Disclosure [Line Items]
Total plan assets	$ 4.8	$ 15.2