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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 30.3	$ 16.3
Accounts receivable and unbilled revenues, net of reserves of $175.8 and $198.3, respectively	1,447.7	1,505.7
Materials, supplies, and inventories	572.2	635.8
Prepaid taxes	193.0	182.1
Other prepayments	33.5	63.4
Amounts recoverable from customers	134.2	102.3
Derivative assets	189.8	107.0
Other	41.8	44.1
Current assets	2,642.5	2,656.7
Long-term assets
Property, plant, and equipment, net of accumulated depreciation and amortization of $10,183.2 and $9,889.3, respectively	27,626.2	26,982.4
Regulatory assets (June 30, 2022 and December 31, 2021 include $96.1 and $100.7, respectively, related to WEPCo Environmental Trust)	3,144.7	3,264.8
Equity investment in transmission affiliates	1,837.2	1,789.4
Goodwill	3,052.8	3,052.8
Pension and OPEB assets	942.1	881.3
Other	361.6	361.1
Long-term assets	36,964.6	36,331.8
Total assets	39,607.1	38,988.5
Current liabilities
Short-term debt	1,629.1	1,897.0
Current portion of long-term debt (June 30, 2022 and December 31, 2021 each include $8.8, respectively, related to WEPCo Environmental Trust)	174.4	169.4
Accounts payable	1,078.2	1,005.7
Other	936.1	680.9
Current liabilities	3,817.8	3,753.0
Long-term liabilities
Long-term debt (June 30, 2022 and December 31, 2021 include $98.4 and $102.7, respectively, related to WEPCo Environmental Trust)	13,523.4	13,523.7
Deferred income taxes	4,493.1	4,308.5
Deferred revenue, net	378.7	389.2
Regulatory liabilities	4,000.1	3,946.0
Environmental remediation liabilities	504.3	532.6
Pension and OPEB obligations	222.2	219.0
Other	1,176.9	1,203.2
Long-term liabilities	24,298.7	24,122.2
Commitments and contingencies (Note 21)
Common shareholders' equity
Common stock – $0.01 par value; 325,000,000 shares authorized; 315,434,531 shares outstanding	3.2	3.2
Additional paid in capital	4,121.1	4,138.1
Retained earnings	7,169.5	6,775.1
Accumulated other comprehensive loss	(3.2)	(3.2)
Common shareholders' equity	11,290.6	10,913.2
Preferred stock of subsidiary	30.4	30.4
Noncontrolling interests	169.6	169.7
Total liabilities and equity	$ 39,607.1	$ 38,988.5

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Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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