Employee Benefit Plans (Fair Value Hierarchy for Pension and Postretirement Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 2.0	$ 1.5	$ 1.5
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	62.7	63.1	51.4
U.S. | Pension Plan | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16.5	19.1
U.S. | Pension Plan | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.4	7.4
U.S. | Pension Plan | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.3	9.7
U.S. | Pension Plan | Emerging markets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.8	2.0
U.S. | Pension Plan | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	45.5	44.0
U.S. | Pension Plan | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32.2	31.8
U.S. | Pension Plan | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	13.3	12.2
U.S. | Pension Plan | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.7	0.0
U.S. | Pension Plan | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.7	0.0
U.S. | Pension Plan | Level 1 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. | Pension Plan | Level 1 | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. | Pension Plan | Level 1 | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. | Pension Plan | Level 1 | Emerging markets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. | Pension Plan | Level 1 | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. | Pension Plan | Level 1 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. | Pension Plan | Level 1 | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. | Pension Plan | Level 1 | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.7	0.0
U.S. | Pension Plan | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	62.0	63.1
U.S. | Pension Plan | Level 2 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16.5	19.1
U.S. | Pension Plan | Level 2 | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.4	7.4
U.S. | Pension Plan | Level 2 | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.3	9.7
U.S. | Pension Plan | Level 2 | Emerging markets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.8	2.0
U.S. | Pension Plan | Level 2 | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	45.5	44.0
U.S. | Pension Plan | Level 2 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32.2	31.8
U.S. | Pension Plan | Level 2 | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	13.3	12.2
U.S. | Pension Plan | Level 2 | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0
Non-U.S. Plans | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	615.8	705.4	$ 613.7
Non-U.S. Plans | Pension Plan | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	98.3	125.0
Non-U.S. Plans | Pension Plan | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	25.8	33.9
Non-U.S. Plans | Pension Plan | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	72.5	91.1
Non-U.S. Plans | Pension Plan | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	484.5	539.8
Non-U.S. Plans | Pension Plan | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	212.7	223.9
Non-U.S. Plans | Pension Plan | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	201.7	236.0
Non-U.S. Plans | Pension Plan | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	70.1	79.9
Non-U.S. Plans | Pension Plan | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33.0	40.6
Non-U.S. Plans | Pension Plan | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	35.1	29.3
Non-U.S. Plans | Pension Plan | Derivatives
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	(4.1)	34.1
Non-U.S. Plans | Pension Plan | Real estate
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.0	0.9
Non-U.S. Plans | Pension Plan | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.6
Non-U.S. Plans | Pension Plan | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	35.1	29.3
Non-U.S. Plans | Pension Plan | Level 1 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	35.1	29.3
Non-U.S. Plans | Pension Plan | Level 1 | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	35.1	29.3
Non-U.S. Plans | Pension Plan | Level 1 | Derivatives
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | Real estate
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 1 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	578.7	674.6
Non-U.S. Plans | Pension Plan | Level 2 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	98.3	125.0
Non-U.S. Plans | Pension Plan | Level 2 | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	25.8	33.9
Non-U.S. Plans | Pension Plan | Level 2 | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	72.5	91.1
Non-U.S. Plans | Pension Plan | Level 2 | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	484.5	539.8
Non-U.S. Plans | Pension Plan | Level 2 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	212.7	223.9
Non-U.S. Plans | Pension Plan | Level 2 | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	201.7	236.0
Non-U.S. Plans | Pension Plan | Level 2 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	70.1	79.9
Non-U.S. Plans | Pension Plan | Level 2 | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	(4.1)	9.8
Non-U.S. Plans | Pension Plan | Level 2 | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 2 | Derivatives
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	(4.1)	34.1
Non-U.S. Plans | Pension Plan | Level 2 | Real estate
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 2 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.0	1.5
Non-U.S. Plans | Pension Plan | Level 3 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.0	1.5
Non-U.S. Plans | Pension Plan | Level 3 | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | Derivatives
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Non-U.S. Plans | Pension Plan | Level 3 | Real estate
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.0	0.9
Non-U.S. Plans | Pension Plan | Level 3 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0.0	$ 0.6