Earnings Per Share

6 Months Ended

Jun. 30, 2023

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Computation of Earnings Per Share 

	Second Quarter				Six Months
	2023		2022		2023		2022
	(in millions, except per share amounts)
Basic Earnings Per Share (EPS):
Net income (loss) attributable to AGL	$	125	$	(47)	$	206	$	19
Less: Distributed and undistributed income (loss) available to nonvested shareholders	1		—		1		—
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	124	$	(47)	$	205	$	19
Basic shares	59.2		63.8		59.1		65.0
Basic EPS	$	2.09	$	(0.74)	$	3.46	$	0.29
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	124	$	(47)	$	205	$	19
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	$	124	$	(47)	$	205	$	19
Basic shares	59.2		63.8		59.1		65.0
Dilutive securities:
Restricted stock awards	0.9		—		1.2		1.2
Diluted shares	60.1		63.8		60.3		66.2
Diluted EPS	$	2.06	$	(0.74)	$	3.40	$	0.29
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect	0.2		2.1		0.1		1.2