ACQUISITIONS - Preliminary purchase price allocation (Details) - USD ($) $ in Millions |
13 Months Ended |
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|
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Dec. 31, 2022 |
Dec. 31, 2021 |
Mar. 31, 2021 |
Nov. 18, 2021 |
Dec. 09, 2020 |
Mar. 13, 2020 |
Business Acquisition [Line Items] |
Ìý
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Ìý
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Ìý
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Ìý
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Ìý
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Ìý
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Goodwill |
$ 1,130
|
$ 1,116
|
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|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Other non-current liabilities |
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$ (72)
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Ìý
|
Ìý
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Ferrous Processing and Trading |
Ìý
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Ìý
|
Ìý
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Ìý
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Ìý
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Ìý
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Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
9
|
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$ 9
|
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Accounts receivable, net |
235
|
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|
233
|
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|
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Inventories |
135
|
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|
137
|
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|
Ìý
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Other current assets |
3
|
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Ìý
|
4
|
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|
Ìý
|
Property, plant and equipment |
191
|
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|
179
|
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|
Ìý
|
Other non-current assets |
72
|
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|
74
|
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|
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Accounts payable |
(122)
|
Ìý
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Ìý
|
(122)
|
Ìý
|
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Accrued employment costs |
(8)
|
Ìý
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Ìý
|
(8)
|
Ìý
|
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Other current liabilities |
(6)
|
Ìý
|
Ìý
|
(9)
|
Ìý
|
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Other non-current liabilities |
(21)
|
Ìý
|
Ìý
|
(21)
|
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|
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Net identifiable assets acquired |
488
|
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|
476
|
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Goodwill |
293
|
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|
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|
279
|
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Total net assets acquired |
781
|
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$ 755
|
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Measurement Period Adjustments, Cash and cash equivalents |
0
|
Ìý
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Ìý
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Accounts receivable, net |
(2)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Inventories |
(2)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Other current assets |
(1)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Property, plant and equipment |
12
|
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Ìý
|
Ìý
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Ìý
|
Ìý
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Measurement Period Adjustments, Other non-current assets |
(2)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Accounts payable |
0
|
Ìý
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Ìý
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Ìý
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Ìý
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Ìý
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Measurement Period Adjustments, Accrued employment costs |
0
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Other current liabilities |
3
|
Ìý
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Ìý
|
Ìý
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Ìý
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Ìý
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Measurement Period Adjustments, Other non-current liabilities |
0
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Net identifiable assets acquired |
12
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Goodwill |
14
|
Ìý
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Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Total net assets acquired |
$ 26
|
Ìý
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ArcelorMittal USA |
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Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Cash and cash equivalents |
Ìý
|
35
|
Ìý
|
Ìý
|
$ 35
|
Ìý
|
Accounts receivable, net |
Ìý
|
346
|
Ìý
|
Ìý
|
349
|
Ìý
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Inventories |
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2,129
|
Ìý
|
Ìý
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2,115
|
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Other current assets |
Ìý
|
36
|
Ìý
|
Ìý
|
34
|
Ìý
|
Property, plant and equipment |
Ìý
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4,404
|
Ìý
|
Ìý
|
4,017
|
Ìý
|
Deferred income taxes |
Ìý
|
285
|
Ìý
|
Ìý
|
0
|
Ìý
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Other non-current assets |
Ìý
|
165
|
Ìý
|
Ìý
|
158
|
Ìý
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Accounts payable |
Ìý
|
(728)
|
Ìý
|
Ìý
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(736)
|
Ìý
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Accrued employment costs |
Ìý
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(266)
|
Ìý
|
Ìý
|
(271)
|
Ìý
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State and local taxes |
Ìý
|
(76)
|
Ìý
|
Ìý
|
(76)
|
Ìý
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Other current liabilities |
Ìý
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(430)
|
Ìý
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Ìý
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(453)
|
Ìý
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Pension liability, non-current |
Ìý
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(730)
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Ìý
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Ìý
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(730)
|
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OPEB liability, non-current |
Ìý
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(2,465)
|
Ìý
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Ìý
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(2,465)
|
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Other non-current liabilities |
Ìý
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(769)
|
Ìý
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Ìý
|
(598)
|
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Noncontrolling interest |
Ìý
|
(8)
|
Ìý
|
Ìý
|
(13)
|
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Net identifiable assets acquired |
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|
1,944
|
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Ìý
|
1,366
|
Ìý
|
Goodwill |
Ìý
|
660
|
Ìý
|
Ìý
|
1,230
|
Ìý
|
Total net assets acquired |
Ìý
|
2,604
|
Ìý
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Ìý
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$ 2,596
|
Ìý
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Measurement Period Adjustments, Cash and cash equivalents |
Ìý
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0
|
Ìý
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Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Accounts receivable, net |
Ìý
|
(3)
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Inventories |
Ìý
|
14
|
Ìý
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|
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Measurement Period Adjustments, Other current assets |
Ìý
|
2
|
Ìý
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Ìý
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Ìý
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Ìý
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Measurement Period Adjustments, Property, plant and equipment |
Ìý
|
387
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Deferred income taxes |
Ìý
|
285
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Other non-current assets |
Ìý
|
7
|
Ìý
|
Ìý
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Ìý
|
Ìý
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Measurement Period Adjustments, Accounts payable |
Ìý
|
8
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Accrued employment costs |
Ìý
|
5
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, State and local taxes |
Ìý
|
0
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Other current liabilities |
Ìý
|
23
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Pension liability, non-current |
Ìý
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0
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, OPEB liability, non-current |
Ìý
|
0
|
Ìý
|
Ìý
|
Ìý
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Ìý
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Measurement Period Adjustments, Other non-current liabilities |
Ìý
|
(171)
|
Ìý
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Ìý
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Ìý
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Ìý
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Measurement Period Adjustments, Noncontrolling interest |
Ìý
|
21
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Net identifiable assets acquired |
Ìý
|
578
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Goodwill |
Ìý
|
(570)
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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Measurement Period Adjustments, Total net assets acquired |
Ìý
|
$ 8
|
Ìý
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Ìý
|
Ìý
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Ìý
|
AK Steel |
Ìý
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Ìý
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Ìý
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Ìý
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Ìý
|
Ìý
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Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
Ìý
|
Ìý
|
39
|
Ìý
|
Ìý
|
$ 38
|
Accounts receivable, net |
Ìý
|
Ìý
|
664
|
Ìý
|
Ìý
|
666
|
Inventories |
Ìý
|
Ìý
|
1,320
|
Ìý
|
Ìý
|
1,563
|
Other current assets |
Ìý
|
Ìý
|
52
|
Ìý
|
Ìý
|
68
|
Property, plant and equipment |
Ìý
|
Ìý
|
2,274
|
Ìý
|
Ìý
|
2,184
|
Deferred income taxes |
Ìý
|
Ìý
|
69
|
Ìý
|
Ìý
|
0
|
Other non-current assets |
Ìý
|
Ìý
|
471
|
Ìý
|
Ìý
|
475
|
Accounts payable |
Ìý
|
Ìý
|
(644)
|
Ìý
|
Ìý
|
(636)
|
Accrued employment costs |
Ìý
|
Ìý
|
(93)
|
Ìý
|
Ìý
|
(94)
|
State and local taxes |
Ìý
|
Ìý
|
(31)
|
Ìý
|
Ìý
|
(35)
|
Other current liabilities |
Ìý
|
Ìý
|
(274)
|
Ìý
|
Ìý
|
(276)
|
Long-term debt |
Ìý
|
Ìý
|
(1,179)
|
Ìý
|
Ìý
|
(1,179)
|
Pension liability, non-current |
Ìý
|
Ìý
|
(463)
|
Ìý
|
Ìý
|
(473)
|
OPEB liability, non-current |
Ìý
|
Ìý
|
(408)
|
Ìý
|
Ìý
|
(400)
|
Other non-current liabilities |
Ìý
|
Ìý
|
(435)
|
Ìý
|
Ìý
|
(507)
|
Noncontrolling interest |
Ìý
|
Ìý
|
(1)
|
Ìý
|
Ìý
|
0
|
Net identifiable assets acquired |
Ìý
|
Ìý
|
1,361
|
Ìý
|
Ìý
|
1,394
|
Goodwill |
Ìý
|
Ìý
|
174
|
Ìý
|
Ìý
|
141
|
Total net assets acquired |
Ìý
|
Ìý
|
1,535
|
Ìý
|
Ìý
|
$ 1,535
|
Measurement Period Adjustments, Cash and cash equivalents |
Ìý
|
Ìý
|
1
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Accounts receivable, net |
Ìý
|
Ìý
|
(2)
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Inventories |
Ìý
|
Ìý
|
243
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Other current assets |
Ìý
|
Ìý
|
16
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Property, plant and equipment |
Ìý
|
Ìý
|
90
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Deferred income taxes |
Ìý
|
Ìý
|
69
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Other non-current assets |
Ìý
|
Ìý
|
4
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Accounts payable |
Ìý
|
Ìý
|
8
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Accrued employment costs |
Ìý
|
Ìý
|
1
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, State and local taxes |
Ìý
|
Ìý
|
4
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Other current liabilities |
Ìý
|
Ìý
|
2
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Long-term debt |
Ìý
|
Ìý
|
0
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Pension liability, non-current |
Ìý
|
Ìý
|
10
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, OPEB liability, non-current |
Ìý
|
Ìý
|
(8)
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Noncontrolling interest |
Ìý
|
Ìý
|
1
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Net identifiable assets acquired |
Ìý
|
Ìý
|
(33)
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Goodwill |
Ìý
|
Ìý
|
33
|
Ìý
|
Ìý
|
Ìý
|
Measurement Period Adjustments, Total net assets acquired |
Ìý
|
Ìý
|
$ 0
|
Ìý
|
Ìý
|
Ìý
|