XML 122 R102.htm IDEA: XBRL DOCUMENT v3.22.1
Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Basic Earnings Per Share (EPS):    
Net income (loss) attributable to AGL $ 66 $ 11
Less: Distributed and undistributed income (loss) available to nonvested shareholders 0 0
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic $ 66 $ 11
Basic shares (in shares) 66.3 76.7
Basic EPS (in dollars per share) $ 1.00 $ 0.14
Diluted EPS:    
Distributed and undistributed income (loss) available to common shareholders of AGL and subsidiaries, basic $ 66 $ 11
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 $ 66 $ 11
Basic shares (in shares) 66.3 76.7
Dilutive securities:    
Options and restricted stock awards (in shares) 1.1 0.8
Diluted shares (in shares) 67.4 77.5
Diluted EPS (in dollars per share) $ 0.98 $ 0.14
Potentially dilutive securities excluded from computation of EPS because of antidilutive effect (in shares) 0.2 0.3