Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2025

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

Computation of Earnings Per Share

	First Quarter
	2025		2024
	(in millions, except per share amounts)
Basic Earnings Per Share (EPS):
Net income (loss) attributable to AGL	$	176	$	109
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	$	175	$	108
Basic shares	50.0		55.6
Basic EPS	$	3.49	$	1.94
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	175	$	108
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	$	175	$	108
Basic shares	50.0		55.6
Dilutive securities:
Restricted stock awards	0.7		1.5
Diluted shares	50.7		57.1
Diluted EPS	$	3.44	$	1.89
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect	0.1		0.1

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Computation of Earnings Per Share

	First Quarter
	2025		2024
	(in millions, except per share amounts)
Basic Earnings Per Share (EPS):
Net income (loss) attributable to AGL	$	176	$	109
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	$	175	$	108
Basic shares	50.0		55.6
Basic EPS	$	3.49	$	1.94
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic	$	175	$	108
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	$	175	$	108
Basic shares	50.0		55.6
Dilutive securities:
Restricted stock awards	0.7		1.5
Diluted shares	50.7		57.1
Diluted EPS	$	3.44	$	1.89
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect	0.1		0.1