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SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION Inventories by Major Category (Details) - USD ($)
$ in Millions
Sep. 30, 2017
Dec. 31, 2016
Inventory [Line Items]    
Raw materials $ 275 $ 296
Finished pulp, paper and packaging 1,453 1,381
Operating supplies 646 661
Other 91 100
Total $ 2,465 $ 2,438