Income Taxes (Tables)

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Summary of Operating Loss Carryforwards Valuation Allowances

Details of significant changes in valuation allowances for the applicable Registrants are provided below:

	Southern Company		Georgia Power
	(in millions)
Federal	$	20	$	—
State (net of federal benefit)	92		28
Balance at December 31, 2020	$	112	$	28
Federal	$	20	$	—
State (net of federal benefit)	122		58
Balance at September 30, 2021	$	142	$	58