Annual report pursuant to Section 13 and 15(d)

EARNINGS PER SHARE - Earnings Per Share Computation (Details)

v3.24.0.1
EARNINGS PER SHARE - Earnings Per Share Computation (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Earnings Per Share [Abstract]      
Income from continuing operations $ 449 $ 1,373 $ 3,030
Income from continuing operations attributable to noncontrolling interest 51 41 45
Net income from continuing operations attributable to Cliffs shareholders 398 1,332 2,985
Income from discontinued operations, net of tax 1 3 3
Net income attributable to Cliffs shareholders $ 399 $ 1,335 $ 2,988
Weighted average number of shares:      
Basic (in shares) 510 519 498
Redeemable preferred shares (in shares) 0 0 33
Convertible senior notes (in shares) 0 2 22
Employee stock plans (in shares) 1 3 5
Diluted (in shares) 511 524 558
Earnings per common share attributable to Cliffs common shareholders - basic      
Continuing operations (in dollars per share) $ 0.78 $ 2.57 $ 5.62
Discontinued operations (in dollars per share) 0 0 0.01
Earnings (loss) per common share attributable to Cliffs common shareholders - basic (in dollars per share) 0.78 2.57 5.63
Earnings per common share attributable to Cliffs common shareholders - diluted:      
Continuing operations (in dollars per share) 0.78 2.55 5.35
Discontinued operations (in dollars per share) 0 0 0.01
Earnings (loss) per common share attributable to Cliffs common shareholders - diluted (in dollars per share) $ 0.78 $ 2.55 $ 5.36
Earnings attributed to Series B Participating Redeemable Preferred Stock     $ 187