Supplementary Information - Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Accounts receivable net:
Accounts receivable - trade	$ 830	$ 802
Accounts receivable - other	157	157
Allowance for doubtful accounts	(10)	(8)
Total accounts receivable, net	977	951
Inventories:
Finished and in process	565	522
Raw materials	237	250
Manufacturing supplies and other	59	52
Total inventories	861	824
Accrued liabilities:
Compensation-related costs	93	81
Income taxes payable	16	27
Current lease liabilities	41
Dividends payable	42	42
Accrued interest	15	15
Taxes payable other than income taxes	36	33
Other	138	127
Total accrued liabilities	381	325
Non-current liabilities:
Employees pension, indemnity and postretirement	132	122
Other	88	95
Total non-current liabilities	$ 220	$ 217