Earnings Per Share - CMS Energy (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share - CMS Energy [Abstract]

Basic And Diluted EPS Computations

In Millions, Except Per Share Amounts
	Three Months Ended						Nine Months Ended
September 30	2012			2011			2012			2011
Income Available to Common Stockholders
Income from continuing operations		$	149		$	140		$	310		$	374
Less income attributable to noncontrolling interests			1			1			2			2
Income from Continuing Operations Available to
Common Stockholders – Basic and Diluted		$	148		$	139		$	308		$	372
Average Common Shares Outstanding
Weighted average shares – basic			262.9			251.3			259.9			250.5
Add dilutive contingently convertible securities			5.1			11.3			7.2			11.4
Add dilutive non-vested stock awards and options			1.0			0.6			1.0			0.4
Add dilutive convertible debentures			-			0.7			-			-
Weighted average shares – diluted			269.0			263.9			268.1			262.3
Income from Continuing Operations per Average
Common Share Available to Common Stockholders
Basic		$	0.56		$	0.55		$	1.18		$	1.48
Diluted			0.55			0.53			1.14			1.42

Schedule Of Potential Impacts On The Calculation Of Diluted EPS Using The If-Converted Method

In Millions
	Nine Months Ended
September 30	2012			2011
Increase to numerator from assumed reduction in
interest expense		$	-		$	1
Increase to denominator from assumed conversion of
debentures into common shares			0.2			0.7