CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 69.2	$ 51.6	$ 202.1	$ 173.6
Other comprehensive income (loss), net of tax (Note 12):
Foreign currency translation adjustments	23.5	(29.8)	(0.6)	13.3
Unrealized (loss) gain on cash flow hedges	(9.8)	17.5	0.4	7.3
Unrealized gain (loss) on available-for-sale investments for the period	0.2	(0.4)	0.3	(0.7)
Reclassification of net realized investment (gain) loss to earnings		(1.0)	0.3	(1.0)
Unrealized gain (loss) on available-for-sale investments	0.2	(1.4)	0.6	(1.7)
Other comprehensive income (loss)	13.9	(13.7)	0.4	18.9
Comprehensive income	$ 83.1	$ 37.9	$ 202.5	$ 192.5