Condensed Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Operating revenues (includes revenue taxes of $112 for 2013, $86 for 2012 and $9 for 2011)	$ 4,617		$ 3,922		$ 2,338
Operating expenses
Cost of goods sold	2,332		1,791		1,097
Operation and maintenance	999		921		501
Depreciation and amortization	418		415		186
Nicor merger expenses		[1]	20		57
Taxes other than income taxes	193		165		57
Total operating expenses	3,942		3,312		1,898
Gain on sale of Compass Energy	11
Operating income	686		610		440
Other income, net	17		24		7
Interest expenses, net	(181)		(184)		(136)
Total other expense	(164)		(160)		(129)
Earnings before income taxes	522		450		311
Income tax expenses	191		164		125
Net income	331		286		186
Less net income attributable to the noncontrolling interest	18		15		14
Net income attributable to AGL Resources Inc.	$ 313		$ 271		$ 172
Per common share data
Basic earnings per common share attributable to AGL Resources Inc. common shareholders (in Dollars per share)	$ 2.65		$ 2.32		$ 2.14
Diluted earnings per common share attributable to AGL Resources Inc. common shareholders (in Dollars per share)	$ 2.64	[2]	$ 2.31	[2]	$ 2.12	[2]
Cash dividends declared per common share (in Dollars per share)	$ 1.88		$ 1.74		$ 1.90
Weighted average number of common shares outstanding
Basic (in Shares)	117.9	[3]	117.0	[3]	80.4	[3]
Diluted (in Shares)	118.3	[2]	117.5	[2]	80.9	[2]

[1] Transaction expenses associated with the Nicor merger are shown separately to better compare year-over-year results.

[2] There were no outstanding stock options excluded from the computation of diluted earnings per common share attributable to AGL Resources Inc. for any of the periods presented because their effect would have been anti-dilutive, as the exercise prices were greater than the average market price.

[3] Daily weighted average shares outstanding.