Segments and Related Information

3 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

Segments and Related Information

17. SEGMENTS AND RELATED INFORMATION

Great Plains Energy has one reportable segment based on its method of internal reporting, which segregates reportable segments based on products and services, management responsibility and regulation.  The one reportable business segment is electric utility, consisting of KCP&L, GMO's regulated utility operations and GMO Receivables Company.  Other includes GMO activity other than its regulated utility operations, GPETHC and unallocated corporate charges including costs to achieve the anticipated acquisition of Westar.  The summary of significant accounting policies applies to the reportable segment.  Segment performance is evaluated based on net income.

The following tables reflect summarized financial information concerning Great Plains Energy's reportable segment.

Three Months Ended March 31, 2017	Electric Utility				Other				Eliminations			Great Plains Energy
		(millions)
Operating revenues		$	570.7			$	—			$	—		$	570.7
Depreciation and amortization		(90.3		)		—				—			(90.3		)
Interest (charges) income		(50.1		)		(24.5		)		8.0			(66.6		)
Income tax (expense) benefit		(10.1		)		15.9				—			5.8
Net income (loss)		16.1				(25.7		)		—			(9.6		)
Three Months Ended March 31, 2016	Electric Utility				Other				Eliminations			Great Plains Energy
		(millions)
Operating revenues		$	572.1			$	—			$	—		$	572.1
Depreciation and amortization		(85.2		)		—				—			(85.2		)
Interest (charges) income		(49.1		)		(10.1		)		8.0			(51.2		)
Income tax (expense) benefit		(13.1		)		1.4				—			(11.7		)
Net income (loss)		29.0				(2.6		)		—			26.4

	Electric Utility			Other			Eliminations				Great Plains Energy
March 31, 2017		(millions)
Assets		$	11,465.6		$	6,729.5		$	(397.6	)		$	17,797.5
Capital expenditures (a)		116.6			—			—				116.6
December 31, 2016
Assets		$	11,444.2		$	2,461.3		$	(335.5	)		$	13,570.0
Capital expenditures (a)		609.4			—			—				609.4