Post Employment Plans - Fair Value of Pension Plan Assets (Details) - USD ($) $ in Millions		Dec. 31, 2016	Dec. 31, 2015	Jun. 27, 2015		Jun. 28, 2014
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		$ 138.2	$ 126.7	$ 128.1
Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		138.2	126.7	128.1
Assets [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		1.7	0.0	0.0
Assets [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		93.1	91.5	93.8
Assets [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		43.4	35.2	34.3	[1]	$ 0.8	[1]
Assets [Member] | Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		13.7	14.5	15.4
Assets [Member] | Equities [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.1	0.0	0.0
Assets [Member] | Equities [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		13.6	14.5	15.4
Assets [Member] | Equities [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.0	0.0
Assets [Member] | Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		24.4	38.1	38.0
Assets [Member] | Bonds [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		1.6	0.0	0.0
Assets [Member] | Bonds [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		22.8	38.1	38.0
Assets [Member] | Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.0	0.0
Assets [Member] | Property [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.3	0.4
Assets [Member] | Property [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.0	0.0
Assets [Member] | Property [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.0	0.0
Assets [Member] | Property [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.3	0.4
Assets [Member] | Insurance Contract, Rights and Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		43.4	34.9	33.9
Assets [Member] | Insurance Contract, Rights and Obligations [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.0	0.0
Assets [Member] | Insurance Contract, Rights and Obligations [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.0	0.0
Assets [Member] | Insurance Contract, Rights and Obligations [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		43.4	34.9	33.9
Assets [Member] | Absolute return fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		51.5	33.7	34.8
Assets [Member] | Absolute return fund [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	0.0	0.0
Assets [Member] | Absolute return fund [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		51.5	33.7	34.8
Assets [Member] | Absolute return fund [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0	$ 0.0	0.0
Assets [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		5.2		5.6
Assets [Member] | Other [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0		0.0
Assets [Member] | Other [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		5.2		5.6
Assets [Member] | Other [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		$ 0.0		0.0
Ireland
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	[1]			128.1		$ 99.6
Ireland | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets				5.2
Ireland | Other [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets				0.0
Ireland | Other [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets				5.2
Ireland | Other [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets				$ 0.0

[1] Includes Omega activity from March 30, 2015 to June 27, 2015.