COMPREHENSIVE INCOME Comprehensive Income - Additional Information (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended
Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 Foreign Currency Translation Adjustment Gain (Loss)	Mar. 31, 2011 Foreign Currency Translation Adjustment Gain (Loss)	Mar. 31, 2012 Net Investment Hedging	Mar. 31, 2011 Net Investment Hedging
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI - Foreign currency translation adjustments, gains (losses)			$ 126.8	$ 86.4	$ 5.3	$ 1.0
AOCI - Foreign currency translation adjustments, gains	223.1	96.3
AOCI - Foreign currency translation adjustments, losses	$ 128.2	$ 133.5

Change in the balance sheet adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity for the period being reported, net of tax. If an entity's functional currency is a foreign currency, translation adjustments result from the process of translating that entity's financial statements into the reporting currency. Includes gain (loss) on foreign currency forward exchange contracts. Includes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain (loss) on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain (loss) and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.

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+ Details