Contingencies and commitments (Tables)

12 Months Ended

Dec. 31, 2017

Contingencies and commitments

Schedule to acquire property, plant and equipment and intangible assets and minimum rentals under operating leases

	Purchase		Operating
	obligations		leases		Total
2018	$	370.2	$	38.0	$	408.2
2019		286.6		35.1		321.7
2020		117.7		29.0		146.7
2021		16.6		26.9		43.5
2022		13.8		23.3		37.1
Thereafter		13.8		102.5		116.3
	$	818.7	$	254.8	$	1,073.5