Earnings Per Share - CMS Energy (Tables)

3 Months Ended

Mar. 31, 2017

Earnings Per Share - CMS Energy [Abstract]

Basic And Diluted EPS Computations

In Millions, Except Per Share Amounts
Three Months Ended March 31	2017			2016
Income available to common stockholders
Net income available to common stockholders – basic and diluted		$	199		$	164
Average common shares outstanding
Weighted-average shares – basic			278.9			276.7
Add dilutive nonvested stock awards			1.0			1.2
Weighted-average shares – diluted			279.9			277.9
Net income per average common share available to common stockholders
Basic		$	0.71		$	0.59
Diluted			0.71			0.59