| | | | Three Months Ended | | Six Months Ended | | | | | 2016 | | 2015 | | 2016 | | 2015 | | Basic earnings per common share: | | | | | | | | | | | | | | Net earnings allocable to common shares(1) | | $ | 700 | | $ | 690 | | $ | 1,414 | | $ | 1,382 | | Weighted-average common shares | | | 266 | | | 279 | | | 266 | | | 281 | | Basic earnings per common share | | $ | 2.63 | | $ | 2.47 | | $ | 5.32 | | $ | 4.92 | | | | | | | | | | | | | | | | | Diluted earnings per common share: | | | | | | | | | | | | | | Net earnings allocable to common shares(1) | | $ | 700 | | $ | 690 | | $ | 1,414 | | $ | 1,382 | | | | | | | | | | | | | | | | | Weighted-average common shares | | | 266 | | | 279 | | | 266 | | | 281 | | Dilutive effect of share-based awards | | | 4 | | | 4 | | | 4 | | | 3 | | Weighted-average diluted shares | | | 270 | | | 283 | | | 270 | | | 284 | | Diluted earnings per common share | | $ | 2.59 | | $ | 2.44 | | $ | 5.24 | | $ | 4.86 | | | | | | | | | | | | | | | | | Anti-dilutive options excluded from diluted | | | | | | | | | | | | | | earnings per common share | | | 5.1 | | | 3.7 | | | 5.1 | | | 3.6 | | | | | | | | | | | | | | | |
(1) Net earnings available to participating securities were immaterial in all periods presented.
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