Restructuring and Other Charges Schedule of Restructuring and Related Costs (Footnotes) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) employees	Dec. 31, 2016 USD ($) employees
EMEA Industrial Packaging [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 33
Restructuring and related cost, accelerated depreciation	6
Restructuring and other related charges, accelerated amortization and other noncash costs	2
Restructuring and other related charges, other	$ 6
Riverdale mill conversion [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, number of positions eliminated | employees	51
Riegelwood mill conversion costs (a)
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, accelerated depreciation		$ 3
Restructuring and related cost, inventory impairment		3
Other restructuring costs		3
Turkey mill closure [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		3
Restructuring and related cost, accelerated depreciation		$ 4
Restructuring and related cost, number of positions eliminated | employees		85