Statements of Income - GPC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Revenues:
Total operating revenues	$ 23,113	$ 20,375	$ 21,419
Operating Expenses:
Other operations and maintenance	6,088	5,413	5,624
Depreciation and amortization	3,565	3,518	3,038
Taxes other than income taxes	1,290	1,234	1,230
Estimated loss on Plant Vogtle Units 3 and 4	1,692		0
Total operating expenses	19,415	15,490	13,683
Operating Income	3,698	4,885	7,736
Other Income and (Expense):
Allowance for equity funds used during construction	190	149	128
Interest expense, net of amounts capitalized	(1,837)	(1,821)	(1,736)
Other income (expense), net	456	336	252
Total other income and (expense)	(1,122)	(1,389)	(1,194)
Earnings Before Income Taxes	2,576	3,496	6,542
Income taxes (benefit)	267	393	1,798
Net Income (Loss)	2,309	3,103	4,744
Retail electric revenues
Operating Revenues:
Total operating revenues	14,852	13,643	14,084
Wholesale revenues
Operating Revenues:
Total operating revenues	2,455	1,945	2,152
Other revenues
Operating Revenues:
Total operating revenues	708	681	755
Operating Expenses:
Cost of sales	357	327	435
Fuel
Operating Expenses:
Cost of sales	4,010	2,967	3,622
Purchased power
Operating Expenses:
Cost of sales	978	799	816
Georgia Power
Operating Revenues:
Total operating revenues	9,260	8,309	8,408
Operating Expenses:
Other operations and maintenance	2,213	1,953	1,972
Depreciation and amortization	1,371	1,425	981
Taxes other than income taxes	476	444	454
Estimated loss on Plant Vogtle Units 3 and 4	1,692	325	0
Total operating expenses	8,692	6,337	5,947
Operating Income	568	1,972	2,461
Other Income and (Expense):
Allowance for equity funds used during construction	127	91	68
Interest expense, net of amounts capitalized	(421)	(425)	(409)
Other income (expense), net	142	89	72
Total other income and (expense)	(152)	(245)	(269)
Earnings Before Income Taxes	416	1,727	2,192
Income taxes (benefit)	(168)	152	472
Net Income (Loss)	584	1,575	1,720
Georgia Power | Retail electric revenues
Operating Revenues:
Total operating revenues	8,478	7,609	7,707
Georgia Power | Wholesale revenues
Operating Revenues:
Total operating revenues	197	115	140
Georgia Power | Other revenues
Operating Revenues:
Total operating revenues	585	585	561
Georgia Power | Fuel
Operating Expenses:
Cost of sales	1,449	1,141	1,444
Georgia Power | Purchased power
Operating Expenses:
Cost of sales	632	540	521
Georgia Power | Purchased power, affiliates
Operating Expenses:
Cost of sales	$ 859	$ 509	$ 575