Pension Plans and Other Benefits - Changes in Defined Benefit Obligations and Plan Assets (Details) - USD ($) $ in Millions	7 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	May. 31, 2013
Change in plan assets:
Fair value at beginning of period		$ 812.1
Fair value at end of period		726.7	$ 812.1
Amounts recognized in the consolidated balance sheets:
Noncurrent liabilities		(69.6)	(77.6)
North American Pension Plans
Change in projected benefit obligation:
Benefit obligation at beginning of period		828.4	728.0
Service cost	$ 4.6	6.5	6.3	$ 6.5
Interest cost	19.0	30.1	32.8	$ 32.6
Actuarial (gain) loss		(20.1)	124.8
Currency fluctuations		(58.1)	(26.8)
Benefits paid		(56.2)	(42.1)
Special termination costs		0.0	5.4
Liability loss due to curtailment/settlement		0.6	0.0
Projected benefit obligation at end of period	728.0	731.2	828.4
Change in plan assets:
Fair value at beginning of period		812.1	736.9
Currency fluctuations		(57.6)	(26.3)
Actual return		15.5	110.7
Company contribution		12.9	32.9
Benefits paid		(56.2)	(42.1)
Fair value at end of period	$ 736.9	726.7	812.1
Funded/(unfunded) status of the plans as of the end of period		(4.5)	(16.3)
Amounts recognized in the consolidated balance sheets:
Noncurrent assets		23.5	10.1
Current liabilities		(0.7)	(0.6)
Noncurrent liabilities		(27.3)	(25.8)
Amounts recognized in accumulated other comprehensive (income) loss
Prior service costs (credits)		13.9	18.7
Actuarial (gain) loss		110.1	120.6
Accumulated benefit obligation for the defined benefit pension plans		727.1	823.7
North American Postretirement Benefit Plans
Change in projected benefit obligation:
Benefit obligation at beginning of period		56.2
Projected benefit obligation at end of period		$ 46.6	$ 56.2