v3.26.1
Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2026
Earnings Per Share [Abstract]  
Schedule of Computation of Basic and Diluted Earnings Per Share
Computation of Earnings Per Share
 First Quarter
 20262025
 (in millions, except per share amounts)
Basic Earnings Per Share (EPS):
Net income (loss) attributable to AGL$88 $176 
Less: Distributed and undistributed income (loss) available to nonvested shareholders1 1 
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic$87 $175 
Basic shares44.9 50.0 
Basic EPS$1.94 $3.49 
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic$87 $175 
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$87 $175 
Basic shares44.9 50.0 
Dilutive securities:
Restricted stock awards0.5 0.7 
Diluted shares45.4 50.7 
Diluted EPS$1.91 $3.44 
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect0.2 0.1 
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
Computation of Earnings Per Share
 First Quarter
 20262025
 (in millions, except per share amounts)
Basic Earnings Per Share (EPS):
Net income (loss) attributable to AGL$88 $176 
Less: Distributed and undistributed income (loss) available to nonvested shareholders1 1 
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic$87 $175 
Basic shares44.9 50.0 
Basic EPS$1.94 $3.49 
Diluted EPS:
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic$87 $175 
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$87 $175 
Basic shares44.9 50.0 
Dilutive securities:
Restricted stock awards0.5 0.7 
Diluted shares45.4 50.7 
Diluted EPS$1.91 $3.44 
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect0.2 0.1