Earnings Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Computation of Earnings Per Share

	First Quarter
	2014		2013
	(in millions, except per share amounts)
Basic earnings per share ("EPS"):
Net income (loss) attributable to AGL	$	42	$	(144	)
Less: Distributed and undistributed income (loss) available to nonvested shareholders	0		0
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	42	$	(144	)
Basic shares	182.1		193.9
Basic EPS	$	0.23	$	(0.74	)
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	42	$	(144	)
Plus: Re-allocation of undistributed income (loss) available to nonvested shareholders of AGL and subsidiaries	—		—
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, diluted	$	42	$	(144	)
Basic shares	182.1		193.9
Effect of dilutive securities:
Options and restricted stock awards	1.0		—
Diluted shares	183.1		193.9
Diluted EPS	$	0.23	$	(0.74	)
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect	1.5		5.1