Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Operating Activities
Net earnings (loss)	$ 407	$ 80	$ 1,137	$ 289
Depreciation, amortization and cost of timber harvested			655	702
Deferred income tax provision (benefit), net			196	304
Restructuring and other charges	26	(16)	48	(16)
Litigation settlement	0	354	0	354
Net gain on transfer of North American Consumer Packaging business			(488)	0
Net bargain purchase gain on acquisition of business			0	(6)
Net (gains) losses on sales and impairments of businesses	0	9	0	9
Equity method dividends received			122	127
Equity (earnings) loss, net	(70)	(20)	(165)	(68)
Periodic pension expense, net			115	158
Other, net			57	73
Changes in current assets and liabilities
Accounts and notes receivable			(333)	(230)
Contract assets			(17)	0
Inventories			(26)	21
Accounts payable and accrued liabilities			142	(110)
Interest payable			2	(1)
Other			19	(328)
Cash Provided By (Used For) Operations			1,464	1,278
Investment Activities
Invested in capital projects			(929)	(664)
Acquisitions, net of cash acquired			0	(44)
Net settlement on transfer of North American Consumer Packaging business			(40)	0
Proceeds from sale of fixed assets			2	17
Other			3	(39)
Cash Provided By (Used For) Investment Activities			(964)	(730)
Financing Activities
Repurchases of common stock and payments of restricted stock tax withholding			(331)	(46)
Issuance of debt			411	132
Reduction of debt			(73)	(248)
Change in book overdrafts			(24)	(6)
Dividends paid			(393)	(382)
Cash Provided By (Used For) Financing Activities			(410)	(550)
Cash Included in Assets Held for Sale			0	(4)
Effect of Exchange Rate Changes on Cash			(35)	14
Change in Cash and Temporary Investments			55	8
Cash and Temporary Investments
Beginning of period			1,018	1,033	$ 1,033
End of period	$ 1,073	$ 1,041	$ 1,073	$ 1,041	$ 1,018