Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash Flows from Operating Activities
Net income	$ 26.4	$ 18.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	85.2	79.8
Amortization of:
Nuclear fuel	8.3	4.9
Other	12.8	12.4
Deferred income taxes, net	12.0	6.5
Investment tax credit amortization	(0.4)	(0.4)
Income from equity investments, net of income taxes	(0.7)	(0.3)
Other operating activities (Note 2)	(16.3)	(22.4)
Net cash from operating activities	127.3	99.4
Cash Flows from Investing Activities
Utility capital expenditures	(133.6)	(217.9)
Allowance for borrowed funds used during construction	(1.4)	(2.7)
Purchases of nuclear decommissioning trust investments	(10.5)	(11.8)
Proceeds from nuclear decommissioning trust investments	9.7	11.0
Other investing activities	(17.9)	(9.1)
Net cash from investing activities	(153.7)	(230.5)
Cash Flows from Financing Activities
Issuance of common stock	0.7	0.8
Issuance fees	(0.2)	0.0
Repayment of long-term debt	(1.1)	(15.1)
Net change in short-term borrowings	69.3	183.7
Dividends paid	(40.9)	(38.2)
Purchase of treasury stock	(4.9)	(1.4)
Other financing activities	0.0	0.5
Net cash from financing activities	22.9	130.3
Net Change in Cash and Cash Equivalents	(3.5)	(0.8)
Cash and Cash Equivalents at Beginning of Year	11.3	13.0
Cash and Cash Equivalents at End of Period	7.8	12.2
Kansas City Power and Light Company [Member]
Cash Flows from Operating Activities
Net income	24.6	13.2
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	61.1	56.5
Amortization of:
Nuclear fuel	8.3	4.9
Other	8.4	7.4
Deferred income taxes, net	10.4	10.3
Investment tax credit amortization	(0.2)	(0.2)
Other operating activities (Note 2)	75.8	60.2
Net cash from operating activities	188.4	152.3
Cash Flows from Investing Activities
Utility capital expenditures	(83.2)	(181.8)
Allowance for borrowed funds used during construction	(0.9)	(2.1)
Purchases of nuclear decommissioning trust investments	(10.5)	(11.8)
Proceeds from nuclear decommissioning trust investments	9.7	11.0
Other investing activities	(8.6)	(6.6)
Net cash from investing activities	(93.5)	(191.3)
Cash Flows from Financing Activities
Issuance fees	(0.2)	0.0
Repayment of long-term debt	0.0	(14.0)
Net change in short-term borrowings	(94.5)	65.7
Net money pool borrowings	0.0	(12.6)
Net cash from financing activities	(94.7)	39.1
Net Change in Cash and Cash Equivalents	0.2	0.1
Cash and Cash Equivalents at Beginning of Year	2.3	2.7
Cash and Cash Equivalents at End of Period	$ 2.5	$ 2.8