Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2014

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Great Plains Energy Other Operating Activities
Three Months Ended March 31	2014			2013
Cash flows affected by changes in:	(millions)
Receivables	$	10.9		$	17.1
Accounts receivable pledged as collateral	—			(1.0		)
Fuel inventories	4.8			(7.5		)
Materials and supplies	0.9			(0.6		)
Accounts payable	(77.9		)	(70.5		)
Accrued taxes	34.6			30.5
Accrued interest	16.4			20.5
Deferred refueling outage costs	4.1			(28.6		)
Pension and post-retirement benefit obligations	22.4			12.7
Allowance for equity funds used during construction	(4.7		)	(1.3		)
Fuel recovery mechanism	(6.6		)	(4.0		)
Solar rebates paid	(12.2		)	(4.9		)
Other	(11.4		)	1.5
Total other operating activities	$	(18.7	)	$	(36.1	)
Cash paid during the period:
Interest	$	26.8		$	23.1
Income taxes	$	0.1		$	0.1
Non-cash investing activities:
Liabilities accrued for capital expenditures	$	37.7		$	37.0

KCP&L Other Operating Activities
Three Months Ended March 31	2014			2013
Cash flows affected by changes in:	(millions)
Receivables	$	13.7		$	21.5
Fuel inventories	1.8			(6.7		)
Materials and supplies	0.5			(0.3		)
Accounts payable	(45.3		)	(32.2		)
Accrued taxes	38.1			26.2
Accrued interest	12.1			14.0
Deferred refueling outage costs	4.1			(28.6		)
Pension and post-retirement benefit obligations	22.0			13.4
Allowance for equity funds used during construction	(4.7		)	(1.3		)
Fuel recovery mechanism	4.6			(1.0		)
Solar rebates paid	(2.7		)	(1.5		)
Other	(17.6		)	(2.8		)
Total other operating activities	$	26.6		$	0.7
Cash paid during the period:
Interest	$	15.5		$	15.1
Non-cash investing activities:
Liabilities accrued for capital expenditures	$	29.4		$	33.3