Related Party Transactions and Relationships (Tables)

6 Months Ended

Jun. 30, 2017

Related Party Transactions [Abstract]

Schedule of related party receivables and payables [Table Text Block]

The following table summarizes KCP&L's related party net receivables.

	June 30		December 31
	2017			2016
	(millions)
Net receivable from GMO	$	51.8		$	64.6
Net receivable from Great Plains Energy	18.6			2.6