SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Schedule of Short-term Debt

The following table summarizes the committed credit facilities (excluding receivable sale facilities discussed in Note 4) available to the Evergy Companies as of December 31, 2020 and 2019.

			Amounts Drawn
	Master Credit Facility		Commercial Paper		Letters of Credit		Cash Borrowings		Available Borrowings		Weighted Average Interest Rate on Short-Term Borrowings
December 31, 2020	(millions)
Evergy, Inc.	$	450.0	n/a		$	0.7	$	200.0	$	249.3	1.40%
Evergy Kansas Central	1,000.0		50.0		17.0		—		933.0		0.23%
Evergy Metro	600.0		—		—		—		600.0		—%
Evergy Missouri West	450.0		65.0		2.0		—		383.0		0.36%
Evergy	$	2,500.0	$	115.0	$	19.7	$	200.0	$	2,165.3
December 31, 2019
Evergy, Inc.	$	450.0	n/a		$	0.7	$	20.0	$	429.3	2.99%
Evergy Kansas Central	1,000.0		249.2		14.2		—		736.6		2.07%
Evergy Metro	600.0		199.3		—		—		400.7		2.02%
Evergy Missouri West	450.0		93.4		2.1		—		354.5		2.02%
Evergy	$	2,500.0	$	541.9	$	17.0	$	20.0	$	1,921.1