Financial Information By Industry Segment And Geographic Area Schedule of Equity Method Investments (Details) - Reportable Subsegments [Member] - Ilim Holding [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Current assets	$ 689	$ 774
Noncurrent assets	1,696	1,351
Current liabilities	1,039	402
Noncurrent liabilities	972	1,426
Noncontrolling interests	6	22
Net sales	2,150	1,927	$ 1,931
Gross profit	1,047	957	971
Income from continuing operations	379	419	254
Net income attributable to Ilim	$ 362	$ 391	$ 237