Basis of Interim Financial Statements (Details) (USD $) In Millions, except Per Share data	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Accrued Expenses
Deferred revenue	$ 355.5		$ 355.5		$ 274.9
Wages, vacations, pensions and other employment costs	285.5		285.5		313.2
Warranties	98.7		98.7		90.0
Postretirement benefits other than pensions	28.2		28.2		29.7
Accrued taxes	40.6		40.6		31.1
Foreign currency hedges	8.4		8.4		22.5
Other	284.3		284.3		280.4
Total	1,101.2		1,101.2		1,041.8
Basis of Interim Financial Statements (Textuals) [Abstract]
Effect of change in accounting estimate on income from continuing operations before income tax	20.6	32.8	41.3	48.8
Effect of change in accounting estimate on income from continuing operations after income tax	$ 13.0	$ 20.6	$ 26.2	$ 30.6
Effect of change in accounting estimate on Earnings Per Share	$ 0.10	$ 0.16	$ 0.20	$ 0.24

Basis of Interim Financial Statements.

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Effect of Change in accounting estimate on Earning Per Share.

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Postretirement benefits other than pensions.

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

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Carrying amount as of the balance sheet date of the liability arising from a financial instrument or a contract used to mitigate a specified risk (hedge), and which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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