Employee Benefit Plans US Pension Assets, Fair Value Inputs (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	$ 16.4	$ 14.6
Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Cash Equivalents, at Carrying Value	28.4	13.1
Defined Benefit Plan, Fair Value of Plan Assets	1,586.4	1,351.0
Fair Value, Inputs, Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	11.8	10.3
Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Cash Equivalents, at Carrying Value	0	0
Defined Benefit Plan, Fair Value of Plan Assets	884.4	840.7
Fair Value, Inputs, Level 3
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	4.6	4.3
Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Cash Equivalents, at Carrying Value	0	0
Defined Benefit Plan, Fair Value of Plan Assets	103.7	84.8
Fair Value, Inputs, Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	0
Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Cash Equivalents, at Carrying Value	28.4	13.1
Defined Benefit Plan, Fair Value of Plan Assets	598.3	425.5
U.S. Mid Cap [Member] | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	139.6	111.6
U.S. Mid Cap [Member] | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	139.6	111.6
U.S. Mid Cap [Member] | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	0
U.S. Mid Cap [Member] | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	0
U.S. Small Cap [Member] | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	231.9	204.0
U.S. Small Cap [Member] | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	120.1
U.S. Small Cap [Member] | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	0
U.S. Small Cap [Member] | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	231.9	83.9
International Securities [Member] | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	266.2	209.3
International Securities [Member] | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	131.7	102.9
International Securities [Member] | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	0
International Securities [Member] | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	134.5	106.4
Emerging Markets [Member] | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	76.3	73.9
Emerging Markets [Member] | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	76.3	73.9
Emerging Markets [Member] | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	0
Emerging Markets [Member] | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	0
United States Government and Government Agencies and Authorities | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	113.1	146.6
United States Government and Government Agencies and Authorities | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	7.4	8.6
United States Government and Government Agencies and Authorities | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	0	0
United States Government and Government Agencies and Authorities | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	105.7	138.0
Corporate Debt Securities [Member] | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	270.4	225.8
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	172.6	141.7
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	0	0
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	97.8	84.1
States, Municipalities, and Political Subdivisions | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	12.9	12.7
States, Municipalities, and Political Subdivisions | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	12.9	12.7
States, Municipalities, and Political Subdivisions | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	0	0
States, Municipalities, and Political Subdivisions | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Fixed Interest and Index-linked Securities	0	0
PrivateEquityDirectInvestment [Domain] | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	7.2
PrivateEquityDirectInvestment [Domain] | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	0
PrivateEquityDirectInvestment [Domain] | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	7.2
PrivateEquityDirectInvestment [Domain] | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	0
Private Equity Funds | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	29.6	28.7
Private Equity Funds | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	0	0
Private Equity Funds | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	29.6	28.7
Private Equity Funds | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	0	0
Hedge Funds [Member] | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	66.9	56.1
Hedge Funds [Member] | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	66.9	56.1
Hedge Funds [Member] | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Alternative Investments, Fair Value Disclosure	0	0
U.S. Large Cap [Member] | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	343.9	269.2
U.S. Large Cap [Member] | Fair Value, Inputs, Level 2 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	343.9	269.2
U.S. Large Cap [Member] | Fair Value, Inputs, Level 3 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	0	0
U.S. Large Cap [Member] | Fair Value, Inputs, Level 1 | Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Equity Securities	$ 0	$ 0