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Deferred Revenue and Advances From Customers (Tables) | 3 Months Ended
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Mar. 31, 2013
Deferred Revenue and Advances from Customers |
Schedule of Deferred Revenue and Advances from Customers |
|  | March 31, 2013 |  |  | December 31, 2012 |
|  | (millions) |
Deferred revenue |  | $ | 112.1 |  |  | $ | 123.1 |
Advances from customers |  |  | 44.7 |  |  |  | 2.4 |
|  | $ | 156.8 |  |  | $ | 125.5 |
Deferred costs associated with deferred revenue |  | $ | 106.2 |  |  | $ | 116.8 |

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- Definition Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=6600647&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6935-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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