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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2017
Property, Plant and Equipment |
5. | Property, Plant and Equipment
December 31 (dollars in millions) |  | 2017 |  |  | 2016 |
Land |  | $ | 11.2 |  |  | $ | 11.0 |
Buildings |  |  | 329.9 |  |  |  | 286.4 |
Equipment |  |  | 608.4 |  |  |  | 533.7 |
Software |  |  | 110.6 |  |  |  | 101.4 |
|  |  | 1,060.1 |  |  |  | 932.5 |
Less accumulated depreciation and amortization |  |  | 531.2 |  |  |  | 470.6 |
|  | $ | 528.9 |  |  | $ | 461.9 |

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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