Revenue Recognition Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

A geographic disaggregation of revenues across our company segmentation in the following tables provide information to assist in evaluating the nature, timing and uncertainty of revenue and cash flows and how they may be impacted by economic factors.

	2018
Reportable Segments	Industrial Packaging			Global Cellulose Fibers		Printing Papers			Corporate & Intersegment			Total
Primary Geographical Markets (a)
United States	$	13,167		$	2,336	$	1,903		$	203		$	17,609
EMEA	1,704			304		1,330			(17		)	3,321
Pacific Rim and Asia	142			179		245			39			605
Americas, other than U.S.	887			—		897			(13		)	1,771
Total	$	15,900		$	2,819	$	4,375		$	212		$	23,306
Operating Segments
North American Industrial Packaging	$	14,187		$	—	$	—		$	—		$	14,187
EMEA Industrial Packaging	1,355			—		—			—			1,355
Brazilian Industrial Packaging	232			—		—			—			232
European Coated Paperboard	359			—		—			—			359
Global Cellulose Fibers	—			2,819		—			—			2,819
North American Printing Papers	—			—		1,956			—			1,956
Brazilian Papers	—			—		978			—			978
European Papers	—			—		1,252			—			1,252
Indian Papers	—			—		202			—			202
Intra-segment Eliminations	(233		)	—		(13		)	—			(246		)
Corporate & Inter-segment Sales	—			—		—			212			212
Total	$	15,900		$	2,819	$	4,375		$	212		$	23,306

(a) Net sales are attributed to countries based on the location of the seller.

Contract with Customer, Asset and Liability [Table Text Block]

The opening and closing balances of the Company's contract assets and current contract liabilities are as follows:

In millions	Contract Assets (Short-Term)		Contract Liabilities (Short-Term)
Beginning Balance - January 1, 2018	$	366	$	53
Ending Balance - December 31, 2018	395		56
Increase / (Decrease)	$	29	$	3