Financing (Tables)

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Credit Arrangements by Company

The following table outlines the committed credit arrangements by company as of March 31, 2019:

	Expires
Company	2019		2020		2022		Total		Unused(d)
	(in millions)
Southern Company(a)	$	—	$	—	$	2,000	$	2,000	$	1,999
Alabama Power	33		500		800		1,333		1,333
Georgia Power	—		—		1,750		1,750		1,736
Mississippi Power	100		—		—		100		100
Southern Power(b)	—		—		750		750		741
Southern Company Gas(c)	—		—		1,900		1,900		1,895
Other	30		—		—		30		30
Southern Company Consolidated	$	163	$	500	$	7,200	$	7,863	$	7,834

(a) Represents the Southern Company parent entity.

(b) Does not include Southern Power Company's $120 million continuing letter of credit facility for standby letters of credit expiring in 2021, of which $24 million was unused at March 31, 2019. Southern Power's subsidiaries are not parties to its bank credit arrangement.

(c) Southern Company Gas, as the parent entity, guarantees the obligations of Southern Company Gas Capital, which is the borrower of $1.4 billion of this arrangement. Southern Company Gas' committed credit arrangement also includes $500 million for which Nicor Gas is the borrower and which is restricted for working capital needs of Nicor Gas. Pursuant to this multi-year credit arrangement, the allocations between Southern Company Gas Capital and Nicor Gas may be adjusted.

(d) Amounts used are for letters of credit.

Schedule of Long-term Debt Financing Activities

The following table outlines the long-term debt financing activities for Southern Company and its subsidiaries for the first three months of 2019:

Company	Senior Note Maturities, Redemptions, and Repurchases		Revenue Bond Issuances and Reofferings of Purchased Bonds		Revenue Bond Maturities, Redemptions, and Repurchases		Other Long-Term Debt Issuances		Other Long-Term Debt Redemptions and Maturities(a)
	(in millions)
Southern Company(b)	$	2,100	$	—	$	—	$	—	$	—
Alabama Power	200		—		—		—		—
Georgia Power	—		343		108		835		2
Mississippi Power	—		43		—		—		—
Other	—		—		—		—		19
Southern Company Consolidated	$	2,300	$	386	$	108	$	835	$	21

(a) Includes reductions in finance lease obligations resulting from cash payments under finance leases.

(b) Represents the Southern Company parent entity.

Shares Used to Compute Diluted Earnings Per Share

Shares used to compute diluted earnings per share were as follows:

	Three Months Ended March 31, 2019	Three Months Ended March 31, 2018
	(in millions)
As reported shares	1,038	1,011
Effect of stock-based compensation	7	5
Diluted shares	1,045	1,016