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REGULATORY ASSETS AND LIABILITIES (Tables)

3 Months Ended

Mar. 31, 2020

Regulatory Assets and Liabilities Disclosure [Abstract]

Schedule of regulatory assets

(in millions)		March 31, 2020				December 31, 2019
Regulatory assets
Pension and OPEB costs		$	1,042.5			$	1,066.6
Plant retirements		851.5				856.4
Environmental remediation costs		686.4				685.5
Income tax related items		457.6				457.8
Asset retirement obligations		188.8				137.5
SSR		140.5				151.5
Uncollectible expense		83.4				52.2
Derivatives		31.8				33.8
We Power generation		18.7				25.8
Other, net		77.6				60.5
Total regulatory assets		$	3,578.8			$	3,527.6
Balance sheet presentation
Other current assets		$	12.7			$	20.9
Regulatory assets		3,566.1				3,506.7
Total regulatory assets		$	3,578.8			$	3,527.6

Schedule of regulatory liabilities

(in millions)		March 31, 2020				December 31, 2019
Regulatory liabilities
Income tax related items		$	2,222.9			$	2,248.8
Removal costs		1,195.0				1,181.5
Pension and OPEB benefits		349.5				354.9
Energy costs refundable through rate adjustments		162.2				89.8
Electric transmission costs		51.0				42.2
Earnings sharing mechanisms		40.6				43.5
Uncollectible expense		39.0				39.1
Energy efficiency programs		35.6				30.7
Decoupling		35.0				36.8
Other, net		12.1				13.1
Total regulatory liabilities		$	4,142.9			$	4,080.4
Balance sheet presentation
Amounts refundable to customers		$	155.8			$	87.6
Regulatory liabilities		3,987.1				3,992.8
Total regulatory liabilities		$	4,142.9			$	4,080.4

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- References

No definition available.

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- Definition

Tabular disclosure of assets that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 715
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 340
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382

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- Definition

Tabular disclosure of regulatory liabilities. Detailed information about liabilities that result from rate actions of a regulator. Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 405
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394

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