Earnings Per Share - CMS Energy (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share - CMS Energy [Abstract]

Basic And Diluted EPS Computations

In Millions, Except Per Share Amounts
Three Months Ended March 31	2016			2015
Income available to common stockholders
Net income available to common stockholders – basic and diluted		$	164		$	202
Average common shares outstanding
Weighted-average shares – basic			276.7			274.8
Add dilutive nonvested stock awards			1.2			0.9
Weighted-average shares – diluted			277.9			275.7
Net income per average common share available to common stockholders
Basic		$	0.59		$	0.73
Diluted			0.59			0.73