DEBT AND CREDIT FACILITIES - Debt Issuances and Terms (Details)
$ in Millions |
12 Months Ended |
|
|
|
|
|
Dec. 31, 2024
USD ($)
Days
day
|
Oct. 22, 2024
USD ($)
|
Aug. 16, 2024
USD ($)
|
Mar. 18, 2024
USD ($)
|
Dec. 31, 2023
USD ($)
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 7,148
|
Ìý
|
Ìý
|
Ìý
|
$ 3,192
|
| 6.750% 2026 Senior Secured Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
6.75%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 0
|
Ìý
|
Ìý
|
Ìý
|
829
|
| 6.750% 2030 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
6.75%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 750
|
Ìý
|
Ìý
|
Ìý
|
750
|
| 6.750% 2030 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
100.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.750% 2030 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Two |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
103.375%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.750% 2030 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One, Upon Equity Issuance |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
106.75%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Restricted Amount (percent of original aggregate principal) |
35.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.750% 2030 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Three |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
101.688%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.000% 2027 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
7.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 73
|
Ìý
|
Ìý
|
Ìý
|
73
|
| 7.000% 2027 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
101.167%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 5.875% 2027 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
5.875%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 556
|
Ìý
|
Ìý
|
Ìý
|
556
|
| 5.875% 2027 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
100.979%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 4.625% 2029 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
4.625%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 368
|
Ìý
|
Ìý
|
Ìý
|
368
|
| 4.625% 2029 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Two |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
102.313%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 4.625% 2029 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Three |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
101.156%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 4.875% 2031 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
4.875%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 325
|
Ìý
|
Ìý
|
Ìý
|
325
|
| 4.875% 2031 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Two |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
102.438%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 4.875% 2031 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One, Upon Equity Issuance |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
104.875%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 4.875% 2031 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Three |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
101.625%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 4.875% 2031 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Four |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
100.813%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.250% 2040 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
6.25%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 235
|
Ìý
|
Ìý
|
Ìý
|
235
|
| 6.250% 2040 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Minimum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption notice period | day |
30
|
Ìý
|
Ìý
|
Ìý
|
Ìý
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| 6.250% 2040 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Maximum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption notice period | day |
60
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.250% 2040 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
100.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.250% 2040 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Two |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
0.40%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Unsecured Debt | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Repurchase price if triggering event occurs |
101.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.000% 2027 AK Senior Notes | AK Steel |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
7.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 56
|
Ìý
|
Ìý
|
Ìý
|
56
|
| 7.000% 2027 AK Senior Notes | AK Steel | Debt Instrument, Redemption, Period Two |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
101.167%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.000% 2032 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Stated interest rate |
7.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Repurchase price if triggering event occurs |
101.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
$ 1,425
|
Ìý
|
$ 600
|
$ 825
|
0
|
| 7.000% 2032 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Minimum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption notice period | Days |
10
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.000% 2032 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
100.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.000% 2032 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Two |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
103.50%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.000% 2032 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One, Upon Equity Issuance |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
107.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Restricted Amount (percent of original aggregate principal) |
35.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.000% 2032 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Three |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
101.75%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.875% 2029 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Repurchase price if triggering event occurs |
10100.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
Ìý
|
$ 900
|
Ìý
|
Ìý
|
0
|
| 6.875% 2029 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
100.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.875% 2029 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Two |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
103.438%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 6.875% 2029 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One, Upon Equity Issuance |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
106.875%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Restricted Amount (percent of original aggregate principal) |
35.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.375% 2033 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Repurchase price if triggering event occurs |
10100.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Total debt |
Ìý
|
$ 900
|
Ìý
|
Ìý
|
$ 0
|
| 7.375% 2033 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Minimum |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption notice period | Days |
10
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.375% 2033 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
100.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.375% 2033 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period Two |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
103.688%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| 7.375% 2033 Senior Notes | ÐÇ¿Õ´«Ã½ Inc. | Debt Instrument, Redemption, Period One, Upon Equity Issuance |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Debt Instrument [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Redemption price, percentage |
107.375%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
| Restricted Amount (percent of original aggregate principal) |
35.00%
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|