Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2017

Supplemental Cash Flow Elements [Abstract]

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

Great Plains Energy Other Operating Activities
Year to Date June 30	2017			2016
Cash flows affected by changes in:	(millions)
Receivables	$	(10.4	)	$	(64.0	)
Accounts receivable pledged as collateral	0.2			1.3
Fuel inventories	19.5			14.5
Materials and supplies	(6.3		)	(4.8		)
Accounts payable	(141.7		)	(84.1		)
Accrued taxes	50.7			54.3
Accrued interest	41.9			0.3
Deferred refueling outage costs	8.1			9.5
Pension and post-retirement benefit obligations	39.1			38.8
Allowance for equity funds used during construction	(1.7		)	(2.4		)
Fuel recovery mechanisms	(11.7		)	(2.3		)
Other	(6.4		)	(39.7		)
Total other operating activities	$	(18.7	)	$	(78.6	)
Cash paid during the period:
Interest	$	107.7		$	96.8
Income taxes	$	0.1		$	0.2
Non-cash investing activities:
Liabilities accrued for capital expenditures	$	31.8		$	30.6

KCP&L Other Operating Activities
Year to Date June 30	2017			2016
Cash flows affected by changes in:	(millions)
Receivables	$	(1.3	)	$	(37.6	)
Fuel inventories	9.4			9.7
Materials and supplies	(4.5		)	(3.6		)
Accounts payable	(90.6		)	(48.0		)
Accrued taxes	56.7			106.1
Accrued interest	(1.6		)	(1.5		)
Deferred refueling outage costs	8.1			9.5
Pension and post-retirement benefit obligations	36.8			39.0
Allowance for equity funds used during construction	(1.7		)	(2.1		)
Fuel recovery mechanisms	(3.6		)	(19.4		)
Other	(13.0		)	(32.2		)
Total other operating activities	$	(5.3	)	$	19.9
Cash paid during the period:
Interest	$	66.6		$	65.5
Non-cash investing activities:
Liabilities accrued for capital expenditures	$	26.5		$	16.5