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

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

Cover
- Cover
- Audit Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Changes in AOCI (loss) related to shareholders' equity (Details)

v3.25.0.1

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Changes in AOCI (loss) related to shareholders' equity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 1,657	$ 1,830
Ending balance	1,537	1,657	$ 1,830
Foreign Currency Translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	0	(1)	1
Other comprehensive income (loss) before reclassifications, net of tax	(70)	1	(2)
Ending balance	(70)	0	(1)
Derivative Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(170)	(16)	68
Other comprehensive income (loss) before reclassifications	(41)	(345)	146
Income tax	10	81	(33)
Other comprehensive income (loss) before reclassifications, net of tax	(31)	(264)	113
Losses (gains) reclassified from AOCI to net income	195	144	(256)
Income tax expense (benefit)	(47)	(34)	59
Net losses (gains) reclassified from AOCI to net income	148	110	(197)
Ending balance	(53)	(170)	(16)
Pension and OPEB
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	1,827	1,847	549
Other comprehensive income (loss) before reclassifications	(68)	115	1,759
Income tax	17	(39)	(434)
Other comprehensive income (loss) before reclassifications, net of tax	(51)	76	1,325
Losses (gains) reclassified from AOCI to net income	(154)	(145)	(36)
Income tax expense (benefit)	38	49	9
Net losses (gains) reclassified from AOCI to net income	(116)	(96)	(27)
Ending balance	$ 1,660	$ 1,827	$ 1,847

- Definition

Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.

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