Earnings Per Share

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Computation of Earnings Per Share

	Second Quarter				Six Months
	2016		2015		2016		2015
	(in millions)
Basic earnings per share ("EPS"):
Net income (loss) attributable to AGL	$	146	$	297	$	205	$	498
Less: Distributed and undistributed income (loss) available to nonvested shareholders	0		0		0		0
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	146	$	297	$	205	$	498
Basic shares	134.0		150.6		135.1		153.2
Basic EPS	$	1.09	$	1.97	$	1.52	$	3.25
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	146	$	297	$	205	$	498
Plus: Re-allocation of undistributed income (loss) available to nonvested shareholders of AGL and subsidiaries	0		0		0		0
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, diluted	$	146	$	297	$	205	$	498
Basic shares	134.0		150.6		135.1		153.2
Dilutive securities:
Options and restricted stock awards	0.8		1.0		0.8		0.9
Diluted shares	134.8		151.6		135.9		154.1
Diluted EPS	$	1.09	$	1.96	$	1.51	$	3.23
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect	0.6		0.1		0.7		0.4