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Earnings Per Common Share | 6 Months Ended
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Jun. 30, 2023
Earnings Per Common Share |
Earnings Per Common Share | 20. Earnings Per Common Share The computations of the basic and diluted per share amounts were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended | ​ | For the six months ended
​ | ​ | June 30, | ​ | June 30,
​ |  | 2023 |  | 2022 |  | 2023 |  | 2022
​ | ​ | (in millions, except per share data)
Net income | ​ | $ | 393.7 | ​ | $ | 3,133.9 | ​ | $ | 259.2 | ​ | $ | 3,477.1
Subtract: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income attributable to noncontrolling interest | ​ | ​ | 4.9 | ​ | ​ | 15.2 | ​ | ​ | 10.5 | ​ | ​ | 19.7
Total | ​ | $ | 388.8 | ​ | $ | 3,118.7 | ​ | $ | 248.7 | ​ | $ | 3,457.4
Weighted-average shares outstanding: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | ​ | 242.7 | ​ | ​ | 252.6 | ​ | ​ | 243.1 | ​ | ​ | 256.0
Dilutive effects: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Stock options | ​ | ​ | 0.7 | ​ | ​ | 1.4 | ​ | ​ | 0.9 | ​ | ​ | 1.5
Restricted stock units | ​ | ​ | 1.8 | ​ | ​ | 1.9 | ​ | ​ | 2.0 | ​ | ​ | 2.0
Performance share awards | ​ | ​ | 0.3 | ​ | ​ | 0.4 | ​ | ​ | 0.4 | ​ | ​ | 0.5
Diluted | ​ | ​ | 245.5 | ​ | ​ | 256.3 | ​ | ​ | 246.4 | ​ | ​ | 260.0
Net income per common share: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 1.60 | ​ | $ | 12.35 | ​ | $ | 1.02 | ​ | $ | 13.50
Diluted | ​ | $ | 1.58 | ​ | $ | 12.17 | ​ | $ | 1.01 | ​ | $ | 13.30
​ The calculation of diluted earnings per share for the three and six months ended June 30, 2023 and 2022, excludes the incremental effect related to certain outstanding stock-based compensation grants due to their anti-dilutive effect. When a net loss is reported, our basic weighted-average shares are used to calculate diluted earnings per share, as dilutive shares would have an antidilutive effect and result in a lower loss per share.

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