Earnings Per Share

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Computation of Earnings Per Share

	First Quarter
	2016		2015
	(in millions)
Basic earnings per share ("EPS"):
Net income (loss) attributable to AGL	$	59	$	201
Less: Distributed and undistributed income (loss) available to nonvested shareholders	1		0
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	58	$	201
Basic shares	136.2		155.8
Basic EPS	$	0.43	$	1.29
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	58	$	201
Plus: Re-allocation of undistributed income (loss) available to nonvested shareholders of AGL and subsidiaries	0		0
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, diluted	$	58	$	201
Basic shares	136.2		155.8
Dilutive securities:
Options and restricted stock awards	0.8		1.0
Diluted shares	137.0		156.8
Diluted EPS	$	0.43	$	1.28
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect	0.8		0.7