Employee Benefit And Retirement Plans Defined Benefit Plan, Fair Value of Plan Assets Disclosures (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 68.3		$ 77.4		$ 75.5
Partnership Interest [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	35.4		47.3		47.8
Real Estate Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	32.9		30.1		27.7
United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	100.00%
Defined Benefit Plan, Fair Value of Plan Assets	752.0		829.5		707.1
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	100.00%		100.00%		100.00%
United States Pension Plan of US Entity [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	352.4		375.3
United States Pension Plan of US Entity [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	333.2		380.5
United States Pension Plan of US Entity [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	66.4		73.7
United States Pension Plan of US Entity [Member] | U.S. Large Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	145.1	[1],[2]	155.4	[1],[2]
United States Pension Plan of US Entity [Member] | U.S. Large Cap Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2.5	[1],[2]	1.6	[1],[2]
United States Pension Plan of US Entity [Member] | U.S. Large Cap Equity [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	142.6	[1],[2]	153.8	[1],[2]
United States Pension Plan of US Entity [Member] | U.S. Large Cap Equity [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
United States Pension Plan of US Entity [Member] | U.S. Small Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	21.6	[1],[2]	27.0	[1],[2]
United States Pension Plan of US Entity [Member] | U.S. Small Cap Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	21.6	[1],[2]	27.0	[1],[2]
United States Pension Plan of US Entity [Member] | U.S. Small Cap Equity [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
United States Pension Plan of US Entity [Member] | U.S. Small Cap Equity [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
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	113.4	[1],[2]	134.5	[1],[2]
United States Pension Plan of US Entity [Member] | International Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	18.8	[1],[2]	23.8	[1],[2]
United States Pension Plan of US Entity [Member] | International Equity [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	94.6	[1],[2]	110.7	[1],[2]
United States Pension Plan of US Entity [Member] | International Equity [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
United States Pension Plan of US Entity [Member] | Equity Securities, Entity Size [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	38.00%
Defined Benefit Plan, Fair Value of Plan Assets	280.1	[1],[2]	316.9	[1],[2]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	37.00%		38.00%		44.00%
United States Pension Plan of US Entity [Member] | Equity Securities, Entity Size [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	42.9	[1],[2]	52.4	[1],[2]
United States Pension Plan of US Entity [Member] | Equity Securities, Entity Size [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	237.2	[1],[2]	264.5	[1],[2]
United States Pension Plan of US Entity [Member] | Equity Securities, Entity Size [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
United States Pension Plan of US Entity [Member] | US Treasury Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	89.9	[1],[3]	107.0	[1],[3]
United States Pension Plan of US Entity [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	83.4	[1],[3]	91.5	[1],[3]
United States Pension Plan of US Entity [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	6.5	[1],[3]	15.5	[1],[3]
United States Pension Plan of US Entity [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
United States Pension Plan of US Entity [Member] | Other Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	62.6	[1],[3]	56.9	[1],[3]
United States Pension Plan of US Entity [Member] | Other Government [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	36.5	[1],[3]	34.5	[1],[3]
United States Pension Plan of US Entity [Member] | Other Government [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	26.1	[1],[3]	22.4	[1],[3]
United States Pension Plan of US Entity [Member] | Other Government [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
United States Pension Plan of US Entity [Member] | Asset-backed Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	7.5	[1],[3]	15.8	[1],[3]
United States Pension Plan of US Entity [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
United States Pension Plan of US Entity [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	7.5	[1],[3]	15.8	[1],[3]
United States Pension Plan of US Entity [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
United States Pension Plan of US Entity [Member] | Corporate Bond Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	214.9	[1],[3]	220.3	[1],[3]
United States Pension Plan of US Entity [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	188.1	[1],[3]	186.7	[1],[3]
United States Pension Plan of US Entity [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	26.8	[1],[3]	33.6	[1],[3]
United States Pension Plan of US Entity [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
United States Pension Plan of US Entity [Member] | Short-term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	7.4	[1],[3]	17.6	[1],[3]
United States Pension Plan of US Entity [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1.5	[1],[3]	10.2	[1],[3]
United States Pension Plan of US Entity [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5.9	[1],[3]	7.4	[1],[3]
United States Pension Plan of US Entity [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
United States Pension Plan of US Entity [Member] | Fixed Income Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	52.00%
Defined Benefit Plan, Fair Value of Plan Assets	382.3	[1],[3]	417.6	[1],[3]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	51.00%		50.00%		42.00%
United States Pension Plan of US Entity [Member] | Fixed Income Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	309.5	[1],[3]	322.9	[1],[3]
United States Pension Plan of US Entity [Member] | Fixed Income Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	72.8	[1],[3]	94.7	[1],[3]
United States Pension Plan of US Entity [Member] | Fixed Income Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
United States Pension Plan of US Entity [Member] | Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	2.00%
Defined Benefit Plan, Fair Value of Plan Assets	16.0	[4]	16.3	[4]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	2.00%		2.00%		2.00%
United States Pension Plan of US Entity [Member] | Insurance Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[4]	0	[4]
United States Pension Plan of US Entity [Member] | Insurance Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	16.0	[4]	16.3	[4]
United States Pension Plan of US Entity [Member] | Insurance Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[4]	0	[4]
United States Pension Plan of US Entity [Member] | Partnership Interest [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	35.4	[5]	45.9	[5]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	5.00%		6.00%		7.00%
United States Pension Plan of US Entity [Member] | Partnership Interest [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[5]	0	[5]
United States Pension Plan of US Entity [Member] | Partnership Interest [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.1	[5]	0.2	[5]
United States Pension Plan of US Entity [Member] | Partnership Interest [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	35.3	[5]	45.7	[5]
United States Pension Plan of US Entity [Member] | Real Estate Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	31.1	[6]	28.0	[6]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	4.00%		3.00%		4.00%
United States Pension Plan of US Entity [Member] | Real Estate Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[6]	0	[6]
United States Pension Plan of US Entity [Member] | Real Estate Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[6]	0	[6]
United States Pension Plan of US Entity [Member] | Real Estate Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	31.1	[6]	28.0	[6]
United States Pension Plan of US Entity [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Defined Benefit Plan, Fair Value of Plan Assets	7.1	[7]	4.8	[7]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	1.00%		1.00%		1.00%
United States Pension Plan of US Entity [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[7]	0	[7]
United States Pension Plan of US Entity [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	7.1	[7]	4.8	[7]
United States Pension Plan of US Entity [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[7]	0	[7]
United States Pension Plan of US Entity [Member] | Derivative Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[8]	0	[8]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	0.00%		0.00%		0.00%
United States Pension Plan of US Entity [Member] | Derivative Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[8]	0	[8]
United States Pension Plan of US Entity [Member] | Derivative Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[8]	0	[8]
United States Pension Plan of US Entity [Member] | Derivative Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[8]	0	[8]
United States Pension Plan of US Entity [Member] | Commodity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	0.00%		0.00%		0.00%
United States Pension Plan of US Entity [Member] | Commodity Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
United States Pension Plan of US Entity [Member] | Commodity Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
United States Pension Plan of US Entity [Member] | Commodity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
United States Pension Plan of US Entity [Member] | Pension Assets, Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	8.00%	[9]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	0.00%		0.00%		0.00%
United States Pension Plan of US Entity [Member] | Pension Assets, Other [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
United States Pension Plan of US Entity [Member] | Pension Assets, Other [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
United States Pension Plan of US Entity [Member] | Pension Assets, Other [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	100.00%
Derivative, Collateral, Right to Reclaim Cash	1.1
Defined Benefit Plan, Fair Value of Plan Assets	584.4		533.5		501.9
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	100.00%		100.00%		100.00%
International [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	72.8		86.9
International [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	509.7		442.9
International [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1.9		3.7
International [Member] | U.S. Large Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	42.7	[1],[2]	40.3	[1],[2]
International [Member] | U.S. Large Cap Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	39.4	[1],[2]	34.6	[1],[2]
International [Member] | U.S. Large Cap Equity [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	3.3	[1],[2]	5.7	[1],[2]
International [Member] | U.S. Large Cap Equity [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
International [Member] | U.S. Small Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	7.1	[1],[2]
International [Member] | U.S. Small Cap Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	7.1	[1],[2]
International [Member] | U.S. Small Cap Equity [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
International [Member] | U.S. Small Cap Equity [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
International [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	57.6	[1],[2]	58.0	[1],[2]
International [Member] | International Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	28.5	[1],[2]	27.5	[1],[2]
International [Member] | International Equity [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	29.1	[1],[2]	30.5	[1],[2]
International [Member] | International Equity [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
International [Member] | Equity Securities, Entity Size [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	12.00%
Defined Benefit Plan, Fair Value of Plan Assets	100.3	[1],[2]	105.4	[1],[2]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	17.00%		20.00%		12.00%
International [Member] | Equity Securities, Entity Size [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	67.9	[1],[2]	69.2	[1],[2]
International [Member] | Equity Securities, Entity Size [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	32.4	[1],[2]	36.2	[1],[2]
International [Member] | Equity Securities, Entity Size [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[2]	0	[1],[2]
International [Member] | US Treasury Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.4	[1],[3]	0	[1],[3]
International [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.4	[1],[3]	0	[1],[3]
International [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Other Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	77.4	[1],[3]	83.1	[1],[3]
International [Member] | Other Government [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Other Government [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	77.4	[1],[3]	83.1	[1],[3]
International [Member] | Other Government [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Asset-backed Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Asset-backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Corporate Bond Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	49.1	[1],[3]	30.7	[1],[3]
International [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	49.1	[1],[3]	30.7	[1],[3]
International [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Short-term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Fixed Income Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	25.00%
Defined Benefit Plan, Fair Value of Plan Assets	126.9	[1],[3]	113.8	[1],[3]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	22.00%		21.00%		20.00%
International [Member] | Fixed Income Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Fixed Income Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	126.9	[1],[3]	113.8	[1],[3]
International [Member] | Fixed Income Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[1],[3]	0	[1],[3]
International [Member] | Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	43.00%
Defined Benefit Plan, Fair Value of Plan Assets	251.5	[4]	235.0	[4]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	43.00%		44.00%		46.00%
International [Member] | Insurance Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[4]	0	[4]
International [Member] | Insurance Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	251.5	[4]	235.0	[4]
International [Member] | Insurance Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[4]	0	[4]
International [Member] | Partnership Interest [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	12.7	[5]	15.7	[5]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	2.00%		3.00%		5.00%
International [Member] | Partnership Interest [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[5]	0	[5]
International [Member] | Partnership Interest [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	12.6	[5]	14.1	[5]
International [Member] | Partnership Interest [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0.1	[5]	1.6	[5]
International [Member] | Real Estate Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1.8	[6]	3.9	[6]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	0.00%		1.00%		1.00%
International [Member] | Real Estate Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[6]	0	[6]
International [Member] | Real Estate Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[6]	1.8	[6]
International [Member] | Real Estate Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1.8	[6]	2.1	[6]
International [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	8.00%
Defined Benefit Plan, Fair Value of Plan Assets	72.2	[7]	59.8	[7]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	12.00%		11.00%		13.00%
International [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	4.9	[7]	17.7	[7]
International [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	67.3	[7]	42.1	[7]
International [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[7]	0	[7]
International [Member] | Derivative Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	4.8	[8]	(18.2)	[8]
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	1.00%		(3.00%)		(6.00%)
International [Member] | Derivative Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[8]	0	[8]
International [Member] | Derivative Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	4.8	[8]	(18.2)	[8]
International [Member] | Derivative Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	[8]	0	[8]
International [Member] | Commodity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		4.6
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	0.00%		1.00%		5.00%
International [Member] | Commodity Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
International [Member] | Commodity Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		4.6
International [Member] | Commodity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
International [Member] | Pension Assets, Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	12.00%	[9]
Defined Benefit Plan, Fair Value of Plan Assets	14.2		13.5
Pension Plan Asset Category as Percent of Total Pension Assets, Percentage	3.00%		2.00%		4.00%
International [Member] | Pension Assets, Other [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0		0
International [Member] | Pension Assets, Other [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	14.2		13.5
International [Member] | Pension Assets, Other [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 0		$ 0

[1] In the U.S. pension plan assets, certain equity and fixed-income investments are held in separately managed investment accounts. The underlying investments in these separately managed accounts are primarily publicly traded securities that are directly owned by the U.S. pension plan, and such investments have been valued using the quoted price as of December 31, 2014 and 2013. Accordingly, these investments have been classified as Level 1 as of December 31, 2014 and 2013.

[2] Equity securities primarily comprise mutual funds and common/collective trust funds. Investments in mutual funds and common/collective trust funds are valued at the net asset value per share or unit multiplied by the number of shares or units held as of the measurement date. The investments in common/collective trust funds include both actively managed and index funds.

[3] Fixed-income investments primarily comprise mutual funds and common/collective trust funds that invest in corporate and government bonds. Investments in mutual funds and common/collective trust funds are valued at the net asset value per share or unit multiplied by the number of shares or units held as of the measurement date. The investments in fixed income securities include both actively managed funds and index funds.

[4] The fair values of insurance contracts are estimated based on the future cash flows to be received under the contracts discounted to the present using a discount rate that approximates the discount rate used to measure the associated pension plan liabilities.

[5] Venture capital and partnerships are valued at net asset value, which is generally calculated using the most recent partnership financial reports.

[6] Real estate investments are generally investments in limited partnerships, real estate investment trusts and similar vehicles that invest in real estate. The values of the investments are generally based on the most recent financial reports of the investment vehicles. The managers of each of the investment vehicles estimate the values of the real estate assets underlying the real estate investments using third-party appraisals and other valuation techniques and analysis.

[7] Cash and cash equivalents include investments in stable value funds. Stable value funds are generally invested in common trust funds and interest-bearing accounts.

[8] Derivatives primarily consist of interest rate and inflation swaps relating to the Company’s international plans. Included in other government fixed income investments is an amount of $1.1 million that relates to cash collateral posted with third parties for the derivatives that are in a liability position as of December 31,

[9] Other investments include private equity funds, hedge funds and real estate funds.