Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

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



	Three Months Ended March 31, 2018	Three Months Ended March 31, 2017
	(in millions)
As reported shares	1,011	993
Effect of options and performance share award units	5	7
Diluted shares	1,016	1,000

The following table presents year-to-date changes in stockholders' equity of Southern Company:



	Number of Common Shares			Common Stockholders' Equity			Preferred and Preference Stock of Subsidiaries					Total Stockholders' Equity
	Issued	Treasury		Common Stockholders' Equity			Preferred and Preference Stock of Subsidiaries		Noncontrolling Interests^(*)			Total Stockholders' Equity
	(in thousands)			(in millions)
Balance at December 31, 2017	1,008,532	(929	)	$	24,167		$	—	$	1,361		$	25,528
Consolidated net income attributable to Southern Company	—	—		938			—		—			938
Other comprehensive income	—	—		30			—		—			30
Stock issued	4,055	—		113			—		—			113
Stock-based compensation	—	—		36			—		—			36
Cash dividends on common stock	—	—		(586		)	—		—			(586		)
Contributions from noncontrolling interests	—	—		—			—		9			9
Distributions to noncontrolling interests	—	—		—			—		(13		)	(13		)
Net income (loss) attributable to noncontrolling interests	—	—		—			—		(6		)	(6		)
Other	—	(33	)	(22		)	—		(2		)	(24		)
Balance at March 31, 2018	1,012,587	(962	)	$	24,676		$	—	$	1,349		$	26,025

Balance at December 31, 2016	991,213	(819	)	$	24,758		$	609	$	1,245		$	26,612
Consolidated net income attributable to Southern Company	—	—		658			—		—			658
Other comprehensive income (loss)	—	—		(9		)	—		—			(9		)
Stock issued	4,240	—		186			—		—			186
Stock-based compensation	—	—		57			—		—			57
Cash dividends on common stock	—	—		(556		)	—		—			(556		)
Contributions from noncontrolling interests	—	—		—			—		71			71
Distributions to noncontrolling interests	—	—		—			—		(18		)	(18		)
Net income (loss) attributable to noncontrolling interests	—	—		—			—		(4		)	(4		)
Other	—	(35	)	—			—		(1		)	(1		)
Balance at March 31, 2017	995,453	(854	)	$	25,094		$	609	$	1,293		$	26,996


(*)	Primarily related to Southern Power Company and excludes redeemable noncontrolling interests. See Note 10 to the financial statements of Southern Power in Item 8 of the Form 10-K for additional information.