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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Operating revenues
Electric revenue	$ 10,104	$ 11,159	$ 11,075
Other revenue	145	159	158
Revenue from sales of electricity	10,249	11,318	11,233
Operating expenses
Fuel	1,584	1,896	2,049
Purchased power	880	1,007	973
Operating and maintenance	2,720	3,090	2,598
Depreciation and amortization	1,826	1,973	2,527
Tax equivalents	528	541	518
Total operating expenses	7,538	8,507	8,665
Operating income	2,711	2,811	2,568
Other income (expense), net	36	62	50
Defined Benefit Plan, Other Cost (Credit)	253	258	256
Interest expense
Interest expense	1,142	1,198	1,243
Net income (loss)	1,352	1,417	1,119
ALABAMA
Operating revenues
Electric revenue	1,439	1,593	1,600
GEORGIA
Operating revenues
Electric revenue	249	270	267
KENTUCKY
Operating revenues
Electric revenue	624	691	696
MISSISSIPPI
Operating revenues
Electric revenue	941	1,063	1,052
NORTH CAROLINA
Operating revenues
Electric revenue	65	74	66
TENNESSEE
Operating revenues
Electric revenue	6,740	7,419	7,350
VIRGINIA
Operating revenues
Electric revenue	$ 42	$ 45	$ 48

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