Financing (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Credit Arrangements by Company

The following table outlines the committed credit arrangements by company as of March 31, 2018:

	Expires												Executable Term Loans				Expires Within One Year
Company	2018		2019		2020		2022		Total		Unused		One Year		Two Years		Term Out		No Term Out
	(in millions)
Southern Company(a)	$	—	$	—	$	—	$	2,000	$	2,000	$	1,999	$	—	$	—	$	—	$	—
Alabama Power	35		—		500		800		1,335		1,335		—		—		—		35
Georgia Power	—		—		—		1,750		1,750		1,736		—		—		—		—
Gulf Power	20		25		235		—		280		280		45		—		20		—
Mississippi Power	100		—		—		—		100		100		—		—		—		100
Southern Power Company(b)	—		—		—		750		750		728		—		—		—		—
Southern Company Gas(c)	—		—		—		1,900		1,900		1,890		—		—		—		—
Other	30		—		—		—		30		30		20		—		20		10
Southern Company Consolidated	$	185	$	25	$	735	$	7,200	$	8,145	$	8,098	$	65	$	—	$	40	$	145

(a) Represents the Southern Company parent entity.

(b) Does not include Southern Power's $120 million continuing letter of credit facility for standby letters of credit expiring in 2019, of which $21 million remains unused at March 31, 2018.

(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 these arrangements. Southern Company Gas' committed credit arrangements also include $500 million for which Nicor Gas is the borrower and which is restricted for working capital needs of Nicor Gas.

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 2018:

Company	Senior Note Issuances		Revenue Bond Maturities, Redemptions, and Repurchases		Other Long-Term Debt Redemptions and Maturities(*)
	(in millions)
Georgia Power	$	—	$	278	$	102
Mississippi Power	600		—		900
Other	—		—		3
Southern Company Consolidated	$	600	$	278	$	1,005

(*) Includes reductions in capital lease obligations resulting from cash payments under capital leases.