Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Reconciliation of the number of shares used for calculating basic and diluted earnings per common share

The calculation for basic and diluted EPS is as follows:

(in millions, except per share data)	Years ended December 31,
	2012			2011		2010
Amount attributable to The McGraw-Hill Companies, Inc. common shareholders:
Income from continuing operations	$	676		$	607	$	581
(Loss) income from discontinued operations	(239		)	304		247
Net income attributable to the Company	$	437		$	911	$	828
Basic weighted-average number of common shares outstanding	278.6			298.1		309.4
Effect of stock options and other dilutive securities	6.0			5.5		2.8
Diluted weighted-average number of common shares outstanding	284.6			303.6		312.2
Basic EPS:
Income from continuing operations	$	2.43		$	2.03	$	1.88
(Loss) income from discontinued operations	(0.86		)	1.02		0.80
Net income	$	1.57		$	3.05	$	2.68
Diluted EPS:
Income from continuing operations	$	2.37		$	2.00	$	1.86
(Loss) income from discontinued operations	(0.84		)	1.00		0.79
Net income	$	1.53		$	3.00	$	2.65