CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues from contracts with customers	[1]	$ 1,250.6	$ 848.2	$ 2,619.7	$ 3,033.7
Other revenues		20.2	16.2	44.1	38.7
Operating revenues		1,270.8	864.4	2,663.8	3,072.4
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE		673.8	330.1	1,322.8	1,876.9
OPERATING EXPENSES
Other operation and maintenance		131.4	115.4	364.5	343.9
Depreciation and amortization		122.4	108.6	341.4	310.2
Taxes other than income		25.3	25.5	77.5	78.5
Operating expenses		279.1	249.5	783.4	732.6
OPERATING INCOME		317.9	284.8	557.6	462.9
OTHER INCOME (EXPENSE)
Equity Securities, FV-NI, Gain (Loss)		39.4	0.0	282.1	0.0
Equity in earnings of unconsolidated affiliates		0.0	41.2	0.0	127.9
Allowance for equity funds used during construction		2.4	1.9	4.6	4.8
Other net periodic benefit income (expense)		0.3	(1.6)	(11.8)	(4.3)
Other income		16.1	5.6	60.6	14.9
Other expense		(19.5)	(3.8)	(33.1)	(12.5)
Net other income		38.7	43.3	302.4	130.8
INTEREST EXPENSE
Interest on long-term debt		40.8	39.3	119.7	115.5
Allowance for borrowed funds used during construction		(0.6)	(1.0)	(2.7)	(2.5)
Interest on short-term debt and other interest charges		2.0	1.2	7.7	5.8
Interest expense		42.2	39.5	124.7	118.8
INCOME BEFORE TAXES		314.4	288.6	735.3	474.9
INCOME TAX EXPENSE		51.6	36.1	119.9	56.8
NET INCOME		$ 262.8	$ 252.5	$ 615.4	$ 418.1
BASIC AVERAGE COMMON SHARES OUTSTANDING		200.2	200.2	200.2	200.1
DILUTED AVERAGE COMMON SHARES OUTSTANDING		200.9	200.4	200.7	200.3
BASIC EARNINGS PER AVERAGE COMMON SHARE		$ 1.31	$ 1.26	$ 3.07	$ 2.09
DILUTED EARNINGS PER AVERAGE COMMON SHARE		$ 1.31	$ 1.26	$ 3.07	$ 2.09
Other Comprehensive Income (Loss), Net of Tax		$ 1.7	$ 1.6	$ 10.4	$ 5.8
Comprehensive Income (Loss), Net of Tax, Attributable to Parent		264.5	254.1	625.8	423.9
OG&E [Member]
Revenues from contracts with customers		1,250.6	848.2	2,619.7	3,033.7
Other revenues		20.2	16.2	44.1	38.7
Operating revenues		1,270.8	864.4	2,663.8	3,072.4
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE		673.8	330.1	1,322.8	1,876.9
OPERATING EXPENSES
Other operation and maintenance		121.5	115.8	355.3	344.4
Depreciation and amortization		122.4	108.6	341.4	310.2
Taxes other than income		24.5	24.6	74.6	75.3
Operating expenses		268.4	249.0	771.3	729.9
OPERATING INCOME		328.6	285.3	569.7	465.6
OTHER INCOME (EXPENSE)
Allowance for equity funds used during construction		2.4	1.9	4.6	4.8
Other net periodic benefit income (expense)		2.2	(1.1)	(1.0)	(3.2)
Other income		2.1	2.4	4.3	5.2
Other expense		(1.1)	(0.3)	(1.9)	(1.0)
Net other income		5.6	2.9	6.0	5.8
INTEREST EXPENSE
Interest on long-term debt		39.8	38.4	116.9	114.2
Allowance for borrowed funds used during construction		(0.6)	(1.0)	(2.7)	(2.5)
Interest on short-term debt and other interest charges		1.0	0.6	4.0	2.6
Interest expense		40.2	38.0	118.2	114.3
INCOME BEFORE TAXES		294.0	250.2	457.5	357.1
INCOME TAX EXPENSE		40.9		64.7	37.0
NET INCOME		253.1	223.8	392.8	320.1
Other Comprehensive Income (Loss), Net of Tax		0.0	0.0	0.0	0.0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent		$ 253.1	$ 223.8	$ 392.8	$ 320.1

[1] In February 2021, Winter Storm Uri resulted in record winter peak demand for electricity and extremely high natural gas and purchased power prices in OG&E's service territory. Operating revenues for the nine months ended September 30, 2021 significantly increased due to increased fuel, purchased power and direct transmission expenses, which are generally recoverable from customers, as a result of Winter Storm Uri. For further discussion, see Note 14 and "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations."