Accumulated Other Comprehensive Income (Loss)

6 Months Ended

Jun. 30, 2016

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Income (Loss) [Text Block]

17. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The following tables reflect the change in the balances of each component of accumulated other comprehensive loss for Great Plains Energy and KCP&L.

Great Plains Energy
	Gains and Losses on Cash Flow Hedges(a)				Defined Benefit Pension Items(a)				Total(a)
	(millions)
Year to Date June 30, 2016
Beginning balance January 1		$	(10.1	)		$	(1.9	)	$	(12.0	)
Amounts reclassified from accumulated other comprehensive loss		2.8				0.2			3.0
Net current period other comprehensive income		2.8				0.2			3.0
Ending balance June 30		$	(7.3	)		$	(1.7	)	$	(9.0	)
Year to Date June 30, 2015
Beginning balance January 1		$	(15.8	)		$	(2.9	)	$	(18.7	)
Amounts reclassified from accumulated other comprehensive loss		2.8				0.3			3.1
Net current period other comprehensive income		2.8				0.3			3.1
Ending balance June 30		$	(13.0	)		$	(2.6	)	$	(15.6	)

^(a) Net of tax

KCP&L
	Gains and Losses on Cash Flow Hedges(a)
	(millions)
Year to date June 30, 2016
Beginning balance January 1		$	(9.6	)
Amounts reclassified from accumulated other comprehensive loss		2.8
Net current period other comprehensive income		2.8
Ending balance June 30		$	(6.8	)
Year to date June 30, 2015
Beginning balance January 1		$	(14.9	)
Amounts reclassified from accumulated other comprehensive loss		2.7
Net current period other comprehensive income		2.7
Ending balance June 30		$	(12.2	)

^(a) Net of tax

The following tables reflect the effect on certain line items of net income from amounts reclassified out of each component of accumulated other comprehensive loss for Great Plains Energy and KCP&L.

Great Plains Energy
Details about Accumulated Other Comprehensive Loss Components	Amount Reclassified from Accumulated Other Comprehensive Loss						Affected Line Item in the Income Statement
Three Months Ended June 30	2016			2015
	(millions)
Gains and (losses) on cash flow hedges (effective portion)
Interest rate contracts	$	(2.2	)	$	(2.3	)	Interest charges
	(2.2		)	(2.3		)	Income before income tax expense and income from equity investments
	0.8			0.9			Income tax benefit
	$	(1.4	)	$	(1.4	)	Net income
Amortization of defined benefit pension items
Net losses included in net periodic benefit costs	$	(0.2	)	$	(0.2	)	Utility operating and maintenance expenses
	(0.2		)	(0.2		)	Income before income tax expense and income from equity investments
	0.1			—			Income tax benefit
	$	(0.1	)	$	(0.2	)	Net income
Total reclassifications, net of tax	$	(1.5	)	$	(1.6	)	Net income
Great Plains Energy
Details about Accumulated Other Comprehensive Loss Components	Amount Reclassified from Accumulated Other Comprehensive Loss						Affected Line Item in the Income Statement
Year to Date June 30	2016			2015
	(millions)
Gains and (losses) on cash flow hedges (effective portion)
Interest rate contracts	$	(4.6	)	$	(4.6	)	Interest charges
	(4.6		)	(4.6		)	Income before income tax expense and income from equity investments
	1.8			1.8			Income tax benefit
	$	(2.8	)	$	(2.8	)	Net income
Amortization of defined benefit pension items
Net losses included in net periodic benefit costs	$	(0.4	)	$	(0.4	)	Utility operating and maintenance expenses
	(0.4		)	(0.4		)	Income before income tax expense and income from equity investments
	0.2			0.1			Income tax benefit
	$	(0.2	)	$	(0.3	)	Net income
Total reclassifications, net of tax	$	(3.0	)	$	(3.1	)	Net income

KCP&L
Details about Accumulated Other Comprehensive Loss Components	Amount Reclassified from Accumulated Other Comprehensive Loss						Affected Line Item in the Income Statement
Three Months Ended June 30	2016			2015
	(millions)
Gains and (losses) on cash flow hedges (effective portion)
Interest rate contracts	$	(2.1	)	$	(2.1	)	Interest charges
	(2.1		)	(2.1		)	Income before income tax expense
	0.7			0.8			Income tax benefit
Total reclassifications, net of tax	$	(1.4	)	$	(1.3	)	Net income
KCP&L
Details about Accumulated Other Comprehensive Loss Components	Amount Reclassified from Accumulated Other Comprehensive Loss						Affected Line Item in the Income Statement
Year to Date June 30	2016			2015
	(millions)
Gains and (losses) on cash flow hedges (effective portion)
Interest rate contracts	$	(4.4	)	$	(4.4	)	Interest charges
	(4.4		)	(4.4		)	Income before income tax expense
	1.6			1.7			Income tax benefit
Total reclassifications, net of tax	$	(2.8	)	$	(2.7	)	Net income