Segment information Segment information - Capital Expenditures, Depreciation, Amortization (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Capital Expenditures by Business Segment	$ 117.4	$ 72.4
Depreciation and Amortization by Business Segment	102.0	94.8
Amortization of Intangible Assets:	4.4	2.7
Total	106.4	97.5
Reportable segments
Segment Reporting Information [Line Items]
Capital Expenditures by Business Segment	108.4	64.9
Depreciation and Amortization by Business Segment	90.1	86.2
Reportable segments \| North America
Segment Reporting Information [Line Items]
Capital Expenditures by Business Segment	64.4	30.6
Depreciation and Amortization by Business Segment	50.7	49.7
Reportable segments \| South America
Segment Reporting Information [Line Items]
Capital Expenditures by Business Segment	23.3	13.1
Depreciation and Amortization by Business Segment	16.9	14.1
Reportable segments \| Rest of World
Segment Reporting Information [Line Items]
Capital Expenditures by Business Segment	20.7	21.2
Depreciation and Amortization by Business Segment	22.5	22.4
Corporate expenses
Segment Reporting Information [Line Items]
Capital Expenditures by Business Segment	6.6	3.8
Depreciation and Amortization by Business Segment	8.7	8.2
Venezuela \| Other items not allocated to segments
Segment Reporting Information [Line Items]
Capital Expenditures by Business Segment	2.4	3.7
Depreciation and Amortization by Business Segment	1.2	0.4
Reorganization and Restructuring \| Other items not allocated to segments
Segment Reporting Information [Line Items]
Depreciation and Amortization by Business Segment	$ 2.0	$ 0.0

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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