Consolidated Statements of Changes In Equity - USD ($) $ in Millions |
Total |
Finocas |
Arceo5 |
AMTBA |
Equity attributable to the equity holders of the parent |
Equity attributable to the equity holders of the parent
Arceo5
|
Equity attributable to the equity holders of the parent
AMTBA
|
Share Capital |
Treasury Shares |
Mandatorily Convertible Notes |
Additional Paid-in Capital |
Retained Earnings |
Retained Earnings
Arceo5
|
Retained Earnings
AMTBA
|
Foreign Currency Translation Adjustments |
Unrealized Gains (Losses) on Derivative Financial Instruments relating to CFH |
Unrealized Gains (Losses) on Investments in Equity Instruments at FVOCI |
Recognized actuarial (losses) gains |
Non-controlling interests |
Non-controlling interests
Finocas
|
Non-controlling interests
Arceo5
|
Non-controlling interests
AMTBA
|
|||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beginning balance (in shares) at Dec. 31, 2022 | [1] | 805,000,000 | |||||||||||||||||||||||
| Beginning balance at Dec. 31, 2022 | $ 55,590 | $ 53,152 | $ 312 | $ (1,895) | $ 509 | $ 28,651 | $ 45,442 | $ (20,819) | $ 2,905 | $ 437 | $ (2,390) | $ 2,438 | |||||||||||||
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Net income (including non-controlling interests) | 1,022 | $ 2 | $ 5 | 919 | 919 | 103 | |||||||||||||||||||
| Other comprehensive income (loss) | 1,274 | 1,258 | 2,378 | (927) | (108) | (85) | 16 | ||||||||||||||||||
| Total comprehensive income (loss) | 2,296 | 2 | 5 | 2,177 | 919 | 2,378 | (927) | (108) | (85) | 119 | |||||||||||||||
| Cancellation of shares (note 11.1) | 0 | $ (9) | 664 | (655) | |||||||||||||||||||||
| Conversion of mandatorily convertible notes (in shares) | [1] | 57,000,000 | |||||||||||||||||||||||
| Conversion of mandatorily convertible notes (note 11.2) | 231 | 231 | 1,534 | (509) | (794) | ||||||||||||||||||||
| Recognition of share-based payments (note 8.3) (in shares) | [1] | 2,000,000 | |||||||||||||||||||||||
| Recognition of share-based payments (note 8.3) | 39 | 39 | 56 | (17) | |||||||||||||||||||||
| Shares buyback (in shares) | [1] | (45,000,000) | |||||||||||||||||||||||
| Share buyback (note 11.1) | (1,208) | (1,208) | (1,208) | ||||||||||||||||||||||
| Dividend (notes 11.4 and 11.5) | (520) | (369) | (369) | (151) | |||||||||||||||||||||
| Disposal of Erdemir shares | 0 | 333 | (333) | ||||||||||||||||||||||
| Early redemption of mandatory convertible bonds (note 11.2) | (315) | (24) | (24) | (291) | |||||||||||||||||||||
| Mandatorily convertible bond extension (note 11.2) | (32) | (32) | |||||||||||||||||||||||
| Capital increase ArcelorMittal Liberia (note 11.5.1) | 0 | (15) | (15) | 15 | |||||||||||||||||||||
| Other movements | $ (13) | (22) | (22) | 9 | |||||||||||||||||||||
| Ending balance (in shares) at Dec. 31, 2023 | 819,271,756 | 819,000,000 | [1] | ||||||||||||||||||||||
| Ending balance at Dec. 31, 2023 | $ 56,068 | 53,961 | $ 303 | (849) | 0 | 27,185 | 46,264 | (18,441) | 1,978 | (4) | (2,475) | 2,107 | |||||||||||||
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Net income (including non-controlling interests) | 1,380 | 4 | 8 | 1,339 | 1,339 | 41 | |||||||||||||||||||
| Other comprehensive income (loss) | (4,480) | (4,390) | (3,855) | (657) | 29 | 93 | (90) | ||||||||||||||||||
| Total comprehensive income (loss) | (3,100) | 4 | 8 | (3,051) | 1,339 | (3,855) | (657) | 29 | 93 | (49) | |||||||||||||||
| Recognition of share-based payments (note 8.3) (in shares) | [1] | 2,000,000 | |||||||||||||||||||||||
| Recognition of share-based payments (note 8.3) | 37 | 37 | 32 | 5 | |||||||||||||||||||||
| Shares buyback (in shares) | [1] | (52,000,000) | |||||||||||||||||||||||
| Share buyback (note 11.1) | (1,300) | (1,300) | (1,300) | ||||||||||||||||||||||
| Dividend (notes 11.4 and 11.5) | (585) | (393) | (393) | (192) | |||||||||||||||||||||
| Disposal of Erdemir shares | 0 | 75 | (75) | ||||||||||||||||||||||
| Capital increase ArcelorMittal Liberia (note 11.5.1) | 0 | (30) | (30) | 30 | |||||||||||||||||||||
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | 172 | $ 172 | |||||||||||||||||||||||
| Other movements | $ (6) | (1) | (1) | (5) | |||||||||||||||||||||
| Ending balance (in shares) at Dec. 31, 2024 | 768,546,622 | 769,000,000 | [1] | ||||||||||||||||||||||
| Ending balance at Dec. 31, 2024 | $ 51,286 | 49,223 | $ 303 | (2,117) | 0 | 27,190 | 47,254 | (22,296) | 1,321 | (50) | (2,382) | 2,063 | |||||||||||||
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Net income (including non-controlling interests) | 3,243 | 6 | 5 | 3,152 | 3,152 | 91 | |||||||||||||||||||
| Other comprehensive income (loss) | 2,892 | 2,785 | 2,951 | (177) | 27 | (16) | 107 | ||||||||||||||||||
| Total comprehensive income (loss) | 6,135 | 6 | 5 | 5,937 | 3,152 | 2,951 | (177) | 27 | (16) | 198 | |||||||||||||||
| Cancellation of shares (note 11.1) | 0 | $ (28) | 1,990 | (1,962) | |||||||||||||||||||||
| Recognition of share-based payments (note 8.3) (in shares) | [1] | 1,000,000 | |||||||||||||||||||||||
| Recognition of share-based payments (note 8.3) | 56 | 56 | 34 | 22 | |||||||||||||||||||||
| Shares buyback (in shares) | [1] | (9,000,000) | |||||||||||||||||||||||
| Share buyback (note 11.1) | (262) | (262) | (262) | ||||||||||||||||||||||
| Dividend (notes 11.4 and 11.5) | (548) | (421) | (421) | (127) | |||||||||||||||||||||
| Mandatorily convertible bond extension (note 11.2) | 22 | 22 | |||||||||||||||||||||||
| Capital increase ArcelorMittal Liberia (note 11.5.1) | 0 | (23) | (23) | 23 | |||||||||||||||||||||
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | $ 172 | $ (88) | $ (11) | $ 9 | $ (31) | $ 9 | $ (31) | $ (97) | $ 20 | ||||||||||||||||
| Disposal of Arcelor Mittal Zenica and Prijedor (note 2.3) | (30) | (30) | |||||||||||||||||||||||
| Other movements | $ (24) | (22) | (22) | (2) | |||||||||||||||||||||
| Ending balance (in shares) at Dec. 31, 2025 | 761,125,819 | 761,000,000 | [1] | ||||||||||||||||||||||
| Ending balance at Dec. 31, 2025 | $ 56,536 | $ 54,466 | $ 275 | $ (355) | $ 0 | $ 25,250 | $ 49,918 | $ (19,345) | $ 1,144 | $ (23) | $ (2,398) | $ 2,070 | |||||||||||||
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