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Earnings Per Common Share
 6 Months Ended
Jun. 30, 2024
Earnings Per Common Share  
Earnings Per Common Share

19. 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, 

​

    

2024

    

2023

    

2024

    

2023

​

​

(in millions, except per share data)

Net income

​

$

356.8

​

$

393.7

​

$

888.8

​

$

259.2

Subtract:

​

​

​

​

​

​

​

​

​

​

​

​

Net income attributable to noncontrolling interest

​

​

3.7

​

​

4.9

​

​

3.2

​

​

10.5

Total

​

$

353.1

​

$

388.8

​

$

885.6

​

$

248.7

Weighted-average shares outstanding:

​

​

​

​

​

​

​

​

​

​

​

​

Basic

​

​

233.8

​

​

242.7

​

​

234.9

​

​

243.1

Dilutive effects:

​

​

​

​

​

​

​

​

​

​

​

​

Stock options

​

​

0.8

​

​

0.7

​

​

0.8

​

​

0.9

Restricted stock units

​

​

1.7

​

​

1.8

​

​

2.0

​

​

2.0

Performance share awards

​

​

0.3

​

​

0.3

​

​

0.3

​

​

0.4

Diluted

​

​

236.6

​

​

245.5

​

​

238.0

​

​

246.4

Net income per common share:

​

​

​

​

​

​

​

​

​

​

​

​

Basic

​

$

1.51

​

$

1.60

​

$

3.77

​

$

1.02

Diluted

​

$

1.49

​

$

1.58

​

$

3.72

​

$

1.01

​

The calculation of diluted earnings per share for the three and six months ended June 30, 2024 and 2023, 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.