EQUITY METHOD INVESTMENTS ILIM Transactions (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
EQUITY METHOD INVESTMENTS ILIM Transactions (Details) [Line Items]
Equity Earnings	$ (1)				$ (1)			$ (2)	$ (3)
Income tax provision (benefit)	39				(575)			120	(384)
Discontinued operations, net of taxes	(27)	$ 13	$ 0	$ (489)	64	$ 95	$ 93	(14)	252
Equity method dividends received	0	13	0	0	0	0	204	13	204
Ilim Holding \| Reportable Subsegments
EQUITY METHOD INVESTMENTS ILIM Transactions (Details) [Line Items]
Equity Earnings	23	46	43	44	64	95	93	112	252
Impairment Charges	59	33	43	533	0	0	0	135	0
Income tax provision (benefit)	$ (9)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ (9)	$ 0

EQUITY METHOD INVESTMENTS ILIM Transactions (Details)

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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Dividends received on equity and other investments during the current period.

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