Employee Benefit Plans (Fair Value Hierarchy for Pension and Postretirement Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1.6	$ 1.6	$ 2.0
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	59.7	63.3	62.7
U.S. | Pension Plan | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18.7	19.5
U.S. | Pension Plan | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.3	10.1
U.S. | Pension Plan | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.5	7.4
U.S. | Pension Plan | Emerging markets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.9	2.0
U.S. | Pension Plan | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40.9	43.8
U.S. | Pension Plan | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23.7	23.7
U.S. | Pension Plan | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.4	11.9
U.S. | Pension Plan | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.8	8.2
U.S. | Pension Plan | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.1
U.S. | Pension Plan | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.1
U.S. | Pension Plan | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	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 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
U.S. | Pension Plan | Level 1 | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0
U.S. | Pension Plan | Level 1 | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0
U.S. | Pension Plan | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	59.7	63.3
U.S. | Pension Plan | Level 2 | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18.7	19.5
U.S. | Pension Plan | Level 2 | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.3	10.1
U.S. | Pension Plan | Level 2 | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.5	7.4
U.S. | Pension Plan | Level 2 | Emerging markets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.9	2.0
U.S. | Pension Plan | Level 2 | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40.9	43.8
U.S. | Pension Plan | Level 2 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23.7	23.7
U.S. | Pension Plan | Level 2 | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.4	11.9
U.S. | Pension Plan | Level 2 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7.8	8.2
U.S. | Pension Plan | Level 2 | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.1
U.S. | Pension Plan | Level 2 | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.1
Non-U.S. Plans | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	762.0	695.4	$ 615.8
Non-U.S. Plans | Pension Plan | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	158.0	154.3
Non-U.S. Plans | Pension Plan | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26.0	25.4
Non-U.S. Plans | Pension Plan | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	132.0	128.9
Non-U.S. Plans | Pension Plan | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	567.1	500.2
Non-U.S. Plans | Pension Plan | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32.4	249.7
Non-U.S. Plans | Pension Plan | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	497.4	213.8
Non-U.S. Plans | Pension Plan | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	37.3	36.7
Non-U.S. Plans | Pension Plan | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	36.9	40.9
Non-U.S. Plans | Pension Plan | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33.3	27.9
Non-U.S. Plans | Pension Plan | Derivatives
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.0	11.4
Non-U.S. Plans | Pension Plan | Real estate
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.6	1.6
Non-U.S. Plans | Pension Plan | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33.3	27.9
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	33.3	27.9
Non-U.S. Plans | Pension Plan | Level 1 | Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33.3	27.9
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 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	727.1	665.9
Non-U.S. Plans | Pension Plan | Level 2 | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	158.0	154.3
Non-U.S. Plans | Pension Plan | Level 2 | Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26.0	25.4
Non-U.S. Plans | Pension Plan | Level 2 | International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	132.0	128.9
Non-U.S. Plans | Pension Plan | Level 2 | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	567.1	500.2
Non-U.S. Plans | Pension Plan | Level 2 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32.4	249.7
Non-U.S. Plans | Pension Plan | Level 2 | Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	497.4	213.8
Non-U.S. Plans | Pension Plan | Level 2 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	37.3	36.7
Non-U.S. Plans | Pension Plan | Level 2 | Other Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.0	11.4
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	2.0	11.4
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 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.6	1.6
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	1.6	1.6
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	$ 1.6	$ 1.6