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Goodwill and Other Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Goodwill | The following table shows the change in goodwill and other intangible assets:
|  | Three Months Ended March 31,
Millions |  | 2015 |  | 2014
|  | Goodwill |  | Other intangible assets |  | Goodwill |  | Other intangible assets
Beginning balance |  | $ | 168.9 |  |  | $ | 197.5 |  |  | $ | — |  |  | $ | 20.7 |
Acquisitions of businesses |  | .3 |  |  | 2.8 |  |  | 23.8 |  |  | 42.4 |
Dispositions of businesses |  | — |  |  | — |  |  | — |  |  | (.4 | )
Amortization, including foreign currency translation |  | — |  |  | (6.9 | ) |  | — |  |  | (.3 | )
Ending balance |  | $ | 169.2 |  |  | $ | 193.4 |  |  | $ | 23.8 |  |  | $ | 62.4 |

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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