CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenue	$ 688.5	$ 531.3	$ 1,976.1	$ 1,713.6
Expenses
Operating	207.3	171.0	573.4	502.3
Selling, general and administrative	187.4	145.0	515.8	436.4
Depreciation and amortization	24.1	19.0	69.7	58.5
Restructuring		0.2		0.1
Total expenses	418.8	335.2	1,158.9	997.3
Operating income	269.7	196.1	817.2	716.3
Non-operating (expense) income, net
Interest expense, net	(15.3)	(12.9)	(42.2)	(45.2)
Other non-operating income (expense), net	10.0	1.6	12.6	13.1
Total non-operating (expense) income, net	(5.3)	(11.3)	(29.6)	(32.1)
Income before provisions for income taxes	264.4	184.8	787.6	684.2
Provision for income taxes	77.9	52.7	249.9	204.3
Net income	186.5	132.1	537.7	479.9
Less: Net income attributable to noncontrolling interests	2.6	1.4	7.8	4.7
Net income attributable to Moody's	$ 183.9	$ 130.7	$ 529.9	$ 475.2
Earnings per share attributable to Moody's common shareholders
Basic	$ 0.83	$ 0.58	$ 2.37	$ 2.09
Diluted	$ 0.81	$ 0.57	$ 2.34	$ 2.06
Weighted average number of shares outstanding
Basic	222.5	226.0	223.3	227.7
Diluted	226.1	229.0	226.7	230.7
Dividends declared per share attributable to Moody's common shareholders	$ 0.16	$ 0.14	$ 0.32	$ 0.28