Equity Compensation (Tables)

3 Months Ended

Mar. 31, 2016

Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]

Equity compensation expense and associated income tax benefits

Three Months Ended March 31	2016			2015
Great Plains Energy		(millions)
Equity compensation expense		$	3.7		$	(0.2	)
Income tax benefit		1.5			—
KCP&L
Equity compensation expense		$	2.5		$	(0.1	)
Income tax benefit		1.0			—

Performance share activity

	Performance Shares			Grant Date Fair Value*
Beginning balance January 1, 2016		609,010			$	25.60
Granted		225,204			31.41
Earned		(306,953	)		24.22
Performance adjustment		99,553			24.16
Ending balance March 31, 2016		626,814			28.13

Restricted stock activity

	Nonvested Restricted Stock			Grant Date Fair Value*
Beginning balance January 1, 2016		231,508			$	24.78
Granted and issued		95,218			29.42
Vested		(69,219	)		22.59
Ending balance March 31, 2016		257,507			27.09