Earnings Per Share - Weighted Average Common Shares (Detail) - shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract] | ||
| Weighted-average number of common shares outstanding | 493,106,315 | 496,343,778 |
| Weighted-average number of vested DSUs | 337,716 | 378,514 |
| Basic | 493,444,031 | 496,722,292 |
| Effect of stock options and TRSUs | 1,060,473 | 1,309,714 |
| Diluted | 494,504,504 | 498,032,006 |