Quarterly report pursuant to Section 13 or 15(d)

EARNINGS PER SHARE - Earnings Per Share Computation (Details)

v3.20.2
EARNINGS PER SHARE - Earnings Per Share Computation (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Earnings Per Share [Abstract]        
Income (loss) from continuing operations $ (107.8) $ 161.4 $ (157.0) $ 139.3
Income attributable to noncontrolling interest 15.8 0.0 19.3 0.0
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent (123.6) 161.4 (176.3) 139.3
Income (loss) from discontinued operations, net of tax 0.3 0.6 (0.3) 0.6
Net income (loss) attributable to Cliffs shareholders $ (123.9) $ 160.8 $ (176.0) $ 138.7
Weighted average number of shares:        
Basic 399,088 275,769 348,302 282,647
Convertible Senior Notes 0 6,700 0 6,900
Employee stock plans 0 3,000 0 4,100
Diluted 399,088 285,479 348,302 293,580
Earnings (loss) per common share attributable to Cliffs shareholders - basic:        
Continuing operations (in dollars per share) $ (0.31) $ 0.59 $ (0.51) $ 0.49
Discontinued operations (in dollars per share) 0 0 0 0
Earnings (Loss) per Common Share - Basic (in dollars per share) (0.31) 0.59 (0.51) 0.49
Earnings (loss) per common share attributable to Cliffs shareholders - diluted:        
Continuing operations (in dollars per share) (0.31) 0.57 (0.51) 0.47
Discontinued operations (in dollars per share) 0 0 0 0
Earnings (Loss) per Common Share - Diluted (in dollars per share) $ (0.31) $ 0.57 $ (0.51) $ 0.47