Annual report [Section 13 and 15(d), not S-K Item 405]

Statements of Consolidated Changes in Equity

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Statements of Consolidated Changes in Equity - USD ($)
$ in Millions
Total
Stelco Holdings Inc
Common Stock
Common Stock
Stelco Holdings Inc
Capital in Excess of Par Value of Shares
Capital in Excess of Par Value of Shares
Stelco Holdings Inc
Retained Earnings (Deficit)
Common Shares in Treasury
Common Shares in Treasury
Stelco Holdings Inc
AOCI (Loss)
Non- controlling Interests
Balance, beginning of period (in shares) at Dec. 31, 2021     500,100,000                
Balance, beginning of period at Dec. 31, 2021 $ 5,774   $ 63   $ 4,892   $ (1) $ (82)   $ 618 $ 284
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Comprehensive income (loss) 2,588           1,335     1,212 41
Stock and other incentive plans (in shares)     1,500,000                
Stock and other incentive plans, APIC         7            
Stock and other incentive plans 19             12      
1.500% 2025 Convertible Senior Notes redemption (in shares)     24,200,000                
Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments (25)       (28)            
Stock Issued During Period, Value, Conversion of Convertible Securities     $ 3                
Common stock repurchases (in shares)     (12,500,000)                
Common stock repurchases, net of excise tax (240)             (240)      
Net distributions to noncontrolling interests (74)                   (74)
Balance, end of period (in shares) at Dec. 31, 2022     513,300,000                
Balance, end of period at Dec. 31, 2022 8,042   $ 66   4,871   1,334 (310)   1,830 251
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Comprehensive income (loss) 277           399     (173) 51
Stock and other incentive plans (in shares)     2,000,000.0                
Stock and other incentive plans, APIC         (10)            
Stock and other incentive plans 23             33      
Common stock repurchases (in shares)     (10,400,000)                
Common stock repurchases, net of excise tax (153)             (153)      
Net distributions to noncontrolling interests $ (67)                   (67)
Balance, end of period (in shares) at Dec. 31, 2023 504,886,773   504,900,000                
Balance, end of period at Dec. 31, 2023 $ 8,122   $ 66   4,861   1,733 (430)   1,657 235
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Comprehensive income (loss) (828)           (754)     (120) 46
Stock Issued During Period, Value, Acquisitions   $ 343       $ (130)     $ 473    
Stock and other incentive plans (in shares)     1,000,000.0                
Acquisition (in shares)   25.9   25,900,000              
Stock and other incentive plans, APIC         27            
Stock and other incentive plans 45             18      
Common stock repurchases (in shares)     (37,900,000)                
Common stock repurchases, net of excise tax (737)             (737)      
Net distributions to noncontrolling interests $ (48)                   (48)
Balance, end of period (in shares) at Dec. 31, 2024 493,948,905   493,900,000                
Balance, end of period at Dec. 31, 2024 $ 6,897   $ 66   $ 4,758   $ 979 $ (676)   $ 1,537 $ 233