Employee Benefit And Retirement Plans Employee Benefit And Retirement Plans (Defined Benefit Plan, Fair Value of Plan Assets Disclosures) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 1,230.6	$ 722.9	$ 752.0
United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	270.4	154.9
United States Pension Plan of US Entity [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	181.6	106.0
United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	583.7	409.5
United States Pension Plan of US Entity [Member] | Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	166.1	26.3
United States Pension Plan of US Entity [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	28.8	26.2
International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	565.3	560.3	584.4
International [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	71.0	104.4
International [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	215.6	177.7
International [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	278.7	278.2
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	638.9	356.4
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	149.8	25.8
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	80.4	20.3
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	372.7	307.7
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	23.5	0.0
Fair Value, Inputs, Level 1 [Member] | United States Pension Plan of US Entity [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	12.5	2.6
Fair Value, Inputs, Level 1 [Member] | International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	194.9	73.5
Fair Value, Inputs, Level 1 [Member] | International [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	26.2	70.0
Fair Value, Inputs, Level 1 [Member] | International [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	164.0	0.0
Fair Value, Inputs, Level 1 [Member] | International [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	4.7	3.5
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	15.2	43.3
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	19.7
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Fair Value, Inputs, Level 2 [Member] | United States Pension Plan of US Entity [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	15.2	23.6
Fair Value, Inputs, Level 2 [Member] | International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	217.8	303.6
Fair Value, Inputs, Level 2 [Member] | International [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Fair Value, Inputs, Level 2 [Member] | International [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	96.2
Fair Value, Inputs, Level 2 [Member] | International [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	217.8	207.4
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	81.3	26.9	$ 68.3
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	62.5	26.3
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	61.4	26.3
Fair Value, Inputs, Level 3 [Member] | United States Pension Plan of US Entity [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1.1	0.0
Fair Value, Inputs, Level 3 [Member] | International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	18.8	0.6
Fair Value, Inputs, Level 3 [Member] | International [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Fair Value, Inputs, Level 3 [Member] | International [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5.3	0.0
Fair Value, Inputs, Level 3 [Member] | International [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	13.5	0.6
Portion at Other than Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	514.0	296.9
Portion at Other than Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	120.6	129.1
Portion at Other than Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	101.2	85.7
Portion at Other than Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	211.0	82.1
Portion at Other than Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	81.2	0.0
Portion at Other than Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.0	0.0
Portion at Other than Fair Value Measurement [Member] | International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	133.8	182.6
Portion at Other than Fair Value Measurement [Member] | International [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	44.8	34.4
Portion at Other than Fair Value Measurement [Member] | International [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	46.3	81.5
Portion at Other than Fair Value Measurement [Member] | International [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	42.7	66.7
Estimate of Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	716.6	426.0
Estimate of Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	149.8	25.8
Estimate of Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	80.4	20.3
Estimate of Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	372.7	327.4
Estimate of Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	84.9	26.3
Estimate of Fair Value Measurement [Member] | United States Pension Plan of US Entity [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	28.8	26.2
Estimate of Fair Value Measurement [Member] | International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	431.5	377.7
Estimate of Fair Value Measurement [Member] | International [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	26.2	70.0
Estimate of Fair Value Measurement [Member] | International [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	169.3	96.2
Estimate of Fair Value Measurement [Member] | International [Member] | Cash and Other Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 236.0	$ 211.5