|
Segment information (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Dec. 31, 2011
|
|
| Segment Revenue and Operating Profit [Line Items] | |||||
| Revenues | $ 979.0 | $ 995.8 | $ 2,912.9 | $ 2,888.4 | |
| Operating profit | 37.1 | 62.5 | 106.0 | 119.9 | |
| Capital expenditures | 120.6 | 118.7 | |||
| Depreciation and amortization | 126.0 | 120.5 | |||
| Total assets | 2,563.9 | 2,563.9 | 2,406.2 | ||
|
International [Member]
|
|||||
| Segment Revenue and Operating Profit [Line Items] | |||||
| Revenues | 744.4 | 751.3 | 2,204.3 | 2,158.1 | |
| Operating profit | 50.8 | 61.4 | 148.1 | 132.8 | |
|
North America [Member]
|
|||||
| Segment Revenue and Operating Profit [Line Items] | |||||
| Revenues | 234.6 | 244.5 | 708.6 | 730.3 | |
| Operating profit | 8.3 | 8.7 | 25.5 | 25.9 | |
|
Segment operating profit [Member]
|
|||||
| Segment Revenue and Operating Profit [Line Items] | |||||
| Operating profit | 59.1 | 70.1 | 173.6 | 158.7 | |
|
Non Segment [Member]
|
|||||
| Segment Revenue and Operating Profit [Line Items] | |||||
| Operating profit | $ (22.0) | $ (7.6) | $ (67.6) | $ (38.8) | |