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Guarantees and Indemnifications (Tables) | 12 Months Ended
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Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Product Warranty Liability [Table Text Block] | The activity in warranty reserves for the last three years is summarized in the following table.
| Year ended December 31,
Dollar amounts in millions | 2011 |  | 2010 |  | 2009
Beginning balance | $ | 29.5 |  |  | $ | 32.9 |  |  | $ | 33.7 |
Accrued to expense during the year | 13.7 |  |  | 11.2 |  |  | 9.5 |
Payments made | (12.9 | ) |  | (14.6 | ) |  | (10.3 | )
Total warranty reserves | 30.3 |  |  | 29.5 |  |  | 32.9 |
Current portion | (12.0 | ) |  | (10.0 | ) |  | (7.0 | )
Long term portion | $ | 18.3 |  |  | $ | 19.5 |  |  | $ | 25.9 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 460 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 8 -Section 50 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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