v3.22.0.1
Earnings Per Common Share - Earnings Per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Earnings Per Share [Abstract]      
Net earnings to common $ 21,151 $ 8,915 $ 7,897
Weighted average basic shares 350.5 356.4 371.6
Effect of dilutive RSUs 5.3 3.9 3.9
Weighted average diluted shares 355.8 360.3 375.5
Basic EPS $ 60.25 $ 24.94 $ 21.18
Diluted EPS $ 59.45 $ 24.74 $ 21.03