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Operations by Segment (Tables) | 12 Months Ended
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Dec. 31, 2017
Schedule of Segment Earnings | Segment earnings, defined by the Company as earnings before interest, taxes, general corporate and corporate research and development expenses, were used to measure the performance of the segments.
|  | Net Sales |  |  | Earnings |
Years ended December 31 (dollars in millions) |  | 2017 |  |  | 2016 |  |  | 2015 |  |  | 2017 |  |  | 2016 |  |  | 2015 |
North America |  | $ | 1,904.8 |  |  | $ | 1,743.2 |  |  | $ | 1,703.0 |  |  | $ | 428.6 |  |  | $ | 385.9 |  |  | $ | 339.9 |
Rest of World |  |  | 1,116.3 |  |  |  | 965.6 |  |  |  | 866.1 |  |  |  | 149.3 |  |  |  | 129.1 |  |  |  | 113.0 |
Inter-segment |  |  | (24.4 | ) |  |  | (22.9 | ) |  |  | (32.6 | ) |  |  | — |  |  |  | — |  |  |  | — |
Total segments – sales, segment earnings |  | $ | 2,996.7 |  |  | $ | 2,685.9 |  |  | $ | 2,536.5 |  |  | $ | 577.9 |  |  | $ | 515.0 |  |  | $ | 452.9 |
Corporate expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (47.0 | ) |  |  | (45.2 | ) |  |  | (43.0 | )
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (10.1 | ) |  |  | (7.3 | ) |  |  | (7.4 | )
Earnings before income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 520.8 |  |  |  | 462.5 |  |  |  | 402.5 |
Provision for income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (224.3 | ) |  |  | (136.0 | ) |  |  | (119.6 | )
Net earnings |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 296.5 |  |  | $ | 326.5 |  |  | $ | 282.9 |
Schedule of Assets, Depreciation And Capital Expenditure By Segment | Assets, depreciation and capital expenditures by segment
|  | Total Assets (December 31) |  |  | Depreciation and Amortization (Years Ended December 31) |  |  | Capital Expenditures (Years Ended December 31) |
(dollars in millions) |  | 2017 |  |  | 2016 |  |  | 2015 |  |  | 2017 |  |  | 2016 |  |  | 2015 |  |  | 2017 |  |  | 2016 |  |  | 2015 |
North America |  | $ | 1,592.5 |  |  | $ | 1,515.9 |  |  | $ | 1,381.1 |  |  | $ | 45.1 |  |  | $ | 42.9 |  |  | $ | 41.9 |  |  | $ | 38.5 |  |  | $ | 45.9 |  |  | $ | 43.5 |
Rest of World |  |  | 741.4 |  |  |  | 584.3 |  |  |  | 544.2 |  |  |  | 23.8 |  |  |  | 21.0 |  |  |  | 19.8 |  |  |  | 55.2 |  |  |  | 34.3 |  |  |  | 28.4 |
Corporate |  |  | 863.4 |  |  |  | 790.8 |  |  |  | 703.9 |  |  |  | 1.2 |  |  |  | 1.2 |  |  |  | 1.3 |  |  |  | 0.5 |  |  |  | 0.5 |  |  |  | 0.8 |
Total |  | $ | 3,197.3 |  |  | $ | 2,891.0 |  |  | $ | 2,629.2 |  |  | $ | 70.1 |  |  | $ | 65.1 |  |  | $ | 63.0 |  |  | $ | 94.2 |  |  | $ | 80.7 |  |  | $ | 72.7 |
Schedule of Net Sales and Long-Lived Assets by Geographic Location | The following data by geographic area includes net sales based on product shipment destination and long-lived assets based on physical location. Long-lived assets include net property, plant and equipment and other long-term assets.
|  | Long-lived Assets (December 31) |  |  | Net Sales (Years Ended December 31) |
(dollars in millions) |  | 2017 |  |  | 2016 |  |  | 2015 |  |  |  |  | 2017 |  |  | 2016 |  |  | 2015 |
United States |  | $ | 303.0 |  |  | $ | 292.4 |  |  | $ | 297.8 |  |  | United States |  | $ | 1,698.1 |  |  | $ | 1,570.7 |  |  | $ | 1,531.4 |
China |  |  | 250.8 |  |  |  | 184.3 |  |  |  | 157.3 |  |  | China |  |  | 1,034.9 |  |  |  | 887.1 |  |  |  | 787.1 |
Canada |  |  | 3.2 |  |  |  | 3.1 |  |  |  | 2.7 |  |  | Canada |  |  | 163.7 |  |  |  | 138.7 |  |  |  | 129.9 |
Other Foreign |  |  | 47.1 |  |  |  | 48.4 |  |  |  | 55.2 |  |  | Other Foreign |  |  | 100.0 |  |  |  | 89.4 |  |  |  | 88.1 |
Total |  | $ | 604.1 |  |  | $ | 528.2 |  |  | $ | 513.0 |  |  | Total |  | $ | 2,996.7 |  |  | $ | 2,685.9 |  |  | $ | 2,536.5 |

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