Employee Benefit Plans (Fair Value Hierarchy for Pension and Postretirement Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Level 3 [Member]
Fair value of plan assets	$ 1.5	$ 1.8	$ 1.9
Pension Benefits U.S. Plans [Member]
Fair value of plan assets	51.4	408.3	506.5
Pension Benefits U.S. Plans [Member] | Total Equity Securities [Member]
Fair value of plan assets	15.7	109.3
Pension Benefits U.S. Plans [Member] | Domestic Equity [Member]
Fair value of plan assets	15.7	13.3
Pension Benefits U.S. Plans [Member] | International Equity [Member]
Fair value of plan assets		79.5
Pension Benefits U.S. Plans [Member] | Emerging Markets [Member]
Fair value of plan assets		16.5
Pension Benefits U.S. Plans [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	35.6	283.6
Pension Benefits U.S. Plans [Member] | Corporate Bonds [Member]
Fair value of plan assets	25.7	156.8
Pension Benefits U.S. Plans [Member] | Government Securities [Member]
Fair value of plan assets	9.9	126.8
Pension Benefits U.S. Plans [Member] | Cash [Member]
Fair value of plan assets	0.1	12.2
Pension Benefits U.S. Plans [Member] | Derivatives [Member]
Fair value of plan assets		3.2
Pension Benefits U.S. Plans [Member] | Level 1 [Member]
Fair value of plan assets	0.1	12.2
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | Total Equity Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | Domestic Equity [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | International Equity [Member]
Fair value of plan assets		0.0
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | Emerging Markets [Member]
Fair value of plan assets		0.0
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | Corporate Bonds [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | Government Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | Cash [Member]
Fair value of plan assets	0.1	12.2
Pension Benefits U.S. Plans [Member] | Level 1 [Member] | Derivatives [Member]
Fair value of plan assets		0.0
Pension Benefits U.S. Plans [Member] | Level 2 [Member]
Fair value of plan assets	51.3	396.1
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | Total Equity Securities [Member]
Fair value of plan assets	15.7	109.3
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | Domestic Equity [Member]
Fair value of plan assets	15.7	13.3
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | International Equity [Member]
Fair value of plan assets		79.5
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | Emerging Markets [Member]
Fair value of plan assets		16.5
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	35.6	283.6
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | Corporate Bonds [Member]
Fair value of plan assets	25.7	156.8
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | Government Securities [Member]
Fair value of plan assets	9.9	126.8
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | Cash [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits U.S. Plans [Member] | Level 2 [Member] | Derivatives [Member]
Fair value of plan assets		3.2
Pension Benefits Non-U.S. Plans [Member]
Fair value of plan assets	613.7	576.3	$ 607.9
Pension Benefits Non-U.S. Plans [Member] | Total Equity Securities [Member]
Fair value of plan assets	135.3	133.8
Pension Benefits Non-U.S. Plans [Member] | Domestic Equity [Member]
Fair value of plan assets	27.7	24.1
Pension Benefits Non-U.S. Plans [Member] | International Equity [Member]
Fair value of plan assets	107.6	109.7
Pension Benefits Non-U.S. Plans [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	419.6	415.3
Pension Benefits Non-U.S. Plans [Member] | Corporate Bonds [Member]
Fair value of plan assets	194.8	206.5
Pension Benefits Non-U.S. Plans [Member] | Government Securities [Member]
Fair value of plan assets	192.8	197.7
Pension Benefits Non-U.S. Plans [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets	32.0	11.1
Pension Benefits Non-U.S. Plans [Member] | Total Other Securities [Member]
Fair value of plan assets	58.8	27.2
Pension Benefits Non-U.S. Plans [Member] | Cash [Member]
Fair value of plan assets	23.2	11.5
Pension Benefits Non-U.S. Plans [Member] | Real Estate [Member]
Fair value of plan assets	0.9	1.0
Pension Benefits Non-U.S. Plans [Member] | Other [Member]
Fair value of plan assets	0.6	0.8
Pension Benefits Non-U.S. Plans [Member] | Derivatives [Member]
Fair value of plan assets	34.1	13.9
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member]
Fair value of plan assets	23.2	11.5
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Total Equity Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Domestic Equity [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | International Equity [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Corporate Bonds [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Government Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Total Other Securities [Member]
Fair value of plan assets	23.2	11.5
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Cash [Member]
Fair value of plan assets	23.2	11.5
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Real Estate [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Other [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Derivatives [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member]
Fair value of plan assets	589.0	563.0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Total Equity Securities [Member]
Fair value of plan assets	135.3	133.8
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Domestic Equity [Member]
Fair value of plan assets	27.7	24.1
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | International Equity [Member]
Fair value of plan assets	107.6	109.7
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	419.6	415.3
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Corporate Bonds [Member]
Fair value of plan assets	194.8	206.5
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Government Securities [Member]
Fair value of plan assets	192.8	197.7
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets	32.0	11.1
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Total Other Securities [Member]
Fair value of plan assets	34.1	13.9
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Cash [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Real Estate [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Other [Member]
Fair value of plan assets		0.0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Derivatives [Member]
Fair value of plan assets	34.1	13.9
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member]
Fair value of plan assets	1.5	1.8
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Total Equity Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Domestic Equity [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | International Equity [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Corporate Bonds [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Government Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Total Other Securities [Member]
Fair value of plan assets	1.5	1.8
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Cash [Member]
Fair value of plan assets	0.0	0.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Real Estate [Member]
Fair value of plan assets	0.9	1.0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Other [Member]
Fair value of plan assets	0.6	0.8
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Derivatives [Member]
Fair value of plan assets	$ 0.0	$ 0.0