REGULATORY ASSETS AND LIABILITIES (Tables)

6 Months Ended

Jun. 30, 2021

Regulatory Assets and Liabilities Disclosure [Abstract]

Schedule of regulatory assets

(in millions)	June 30, 2021		December 31, 2020
Regulatory assets
Finance leases	$	1,010.2	$	985.5
Plant retirements	661.7		669.8
Pension and OPEB costs	457.4		477.0
Income tax related items	390.4		392.6
SSR	132.8		135.6
Securitization (1)	106.0		105.2
Asset retirement obligations	27.9		28.6
Other, net	4.2		9.0
Total regulatory assets	$	2,790.6	$	2,803.3

(1)See Note 16, Variable Interest Entities, for more information.

Schedule of regulatory liabilities

(in millions)	June 30, 2021		December 31, 2020
Regulatory liabilities
Income tax related items	$	768.7	$	806.7
Removal costs	689.3		677.2
Pension and OPEB benefits	129.1		132.1
Electric transmission costs	61.4		61.7
Derivatives	36.1		5.9
Other, net	19.1		24.3
Total regulatory liabilities	$	1,703.7	$	1,707.9
Balance sheet presentation
Other current liabilities	$	2.9	$	4.2
Regulatory liabilities	1,700.8		1,703.7
Total regulatory liabilities	$	1,703.7	$	1,707.9