Earnings Per Share

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Computation of Earnings Per Share

	First Quarter
	2015		2014
	(in millions, except per share amounts)
Basic earnings per share ("EPS"):
Net income (loss) attributable to AGL	$	201	$	42
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	$	201	$	42
Basic shares	155.8		182.1
Basic EPS	$	1.29	$	0.23
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	201	$	42
Plus: Re-allocation of undistributed income (loss) available to nonvested shareholders of AGL and subsidiaries	0		—
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, diluted	$	201	$	42
Basic shares	155.8		182.1
Effect of dilutive securities:
Options and restricted stock awards	1.0		1.0
Diluted shares	156.8		183.1
Diluted EPS	$	1.28	$	0.23
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect	0.7		1.5