Supplemental Financial Information (Other Liabilities) (Details) (USD $) In Millions | Sep. 30, 2011 | Dec. 31, 2010 |
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| Supplemental Financial Information [Abstract] | ||
| Contract intangibles | $ 204.6 | |
| Unrecognized tax benefits (inclusive of interest and penalties) | 87.8 | 25.7 |
| Deferred revenue | 66.0 | 68.0 |
| Supplemental executive retirement plan liabilities | 28.4 | 26.0 |
| Other | 35.0 | 19.7 |
| Other liabilities | $ 421.8 | $ 139.4 |
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- Definition Contract Intangible Liabilities Noncurrent
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- Definition Supplemental Executive Retirement Plan Liabilities
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- Definition Supplemental Financial Information [Abstract]
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- Definition The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The noncurrent portion (due beyond one year or one operating cycle) of other accrued expenses (expenses incurred at the end of the reporting period but not yet paid) not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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