INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Examination [Line Items]
Statutory U.S. income tax rate		21.00%	21.00%	21.00%
Valuation allowance	$ 35	$ 35	$ 39
Income tax payments, net of refunds	84
Unrecognized tax benefits	$ 12	12	$ 10	$ 4
Income tax examination, estimate of possible loss		95
Income tax examination, penalties and interest expense		$ 235
Income tax examination, tax liabilities payable, percentage	40.00%	40.00%
Income tax examination, tax liability, threshold	$ 300	$ 300
Investment Tax Credit		$ 14
International Paper
Income Tax Examination [Line Items]
Income tax examination, tax liabilities payable, percentage	60.00%	60.00%

Income Tax Examination, Maximum Tax Liability, Threshold One

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Income Tax Examination, Tax Liability, Percentage, Threshold One

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Estimated amount of loss resulting from an adverse tax position.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax.

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The amount deducted from an entities' taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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