Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue:
Product	$ 940.5	$ 1,058.4	$ 1,761.4	$ 1,914.2
Service	967.5	897.8	2,965.0	2,662.4
Total revenue	1,908.0	1,956.2	4,726.4	4,576.6
Operating-related expenses:
Product	374.5	408.4	785.9	840.4
Service	336.6	299.6	1,021.6	879.9
Total operating-related expenses	711.1	708.0	1,807.5	1,720.3
Selling and general expenses	552.2	597.6	1,635.1	1,619.5
Depreciation	23.1	23.3	73.5	72.2
Amortization of intangibles	14.8	8.4	43.4	30.3
Total expenses	1,301.2	1,337.3	3,559.5	3,442.3
Other income	0	(11.1)	(13.2)	(11.1)
Operating Income	606.8	630.0	1,180.1	1,145.4
Interest expense, net	18.1	19.3	56.8	62.2
Income from continuing operations before taxes on income	588.7	610.7	1,123.3	1,083.2
Provision for taxes on income	213.7	221.7	407.8	393.2
Income from continuing operations	375.0	389.0	715.5	690.0
(Loss) income from discontinued operations, net of tax	(1.1)	0.7	(1.7)	0.9
Net income	373.9	389.7	713.8	690.9
Less: net income attributable to noncontrolling interests	(8.3)	(9.8)	(17.2)	(16.7)
Net income attributable to The McGraw-Hill Companies, Inc.	365.6	379.9	696.6	674.2
Amounts attributable to The McGraw-Hill Companies, Inc. common shareholders:
Income from continuing operations	366.7	379.2	698.3	673.3
(Loss) income from discontinued operations, net of tax	(1.1)	0.7	(1.7)	0.9
Net income	$ 365.6	$ 379.9	$ 696.6	$ 674.2
Basic:
Income from continuing operations	$ 1.23	$ 1.23	$ 2.31	$ 2.17
(Loss) income from discontinued operations, net of tax	$ 0	$ 0.01	$ 0	$ 0
Net income	$ 1.23	$ 1.24	$ 2.31	$ 2.17
Diluted:
Income from continuing operations	$ 1.21	$ 1.23	$ 2.27	$ 2.15
(Loss) income from discontinued operations, net of tax	$ 0	$ 0	$ 0	$ 0
Net income	$ 1.21	$ 1.23	$ 2.27	$ 2.15
Average number of common shares outstanding:
Basic	297.8	307.2	302.2	310.6
Diluted	303.6	309.3	307.4	312.9
Dividend declared per common share	$ 0.25	$ 0.235	$ 0.75	$ 0.705