Three Months Ended June 30,

Six Months Ended June 30,

(Dollars in millions, except per share amounts)

2021

2020

2021

2020

Earnings (loss) attributable to United States Steel Corporation stockholders

$

1,012

$

(589)

$

1,103

$

(980)

Weighted-average shares outstanding (in thousands):

Basic

269,872

175,327

259,668

172,775

Effect of Senior Convertible Notes

11,975

—

10,439

—

Effect of stock options, restricted stock units and performance awards

4,490

—

4,405

—

Adjusted weighted-average shares outstanding, diluted

286,337

175,327

274,512

172,775

Basic earnings (loss) per common share

$

3.75

$

(3.36)

$

4.25

$

(5.67)

Diluted earnings (loss) per common share

$

3.53

$

(3.36)

$

4.02

$

(5.67)