Investments in Affiliates (Schedule of Cost Method Investments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Cost-method Investments [Line Items]
Carrrying value	$ 159	$ 155
Dividend income	$ 108	$ 108	$ 107
Kunming Cellulose Fibers Co. Ltd. [Member] | Consumer Specialties [Member]
Schedule of Cost-method Investments [Line Items]
Ownership percentage	30.00%	30.00%
Carrrying value	$ 14	$ 14
Dividend income	$ 12	$ 14	14
Nantong Cellulose Fibers Co. Ltd. [Member] | Consumer Specialties [Member]
Schedule of Cost-method Investments [Line Items]
Ownership percentage	31.00%	31.00%
Carrrying value	$ 109	$ 106
Dividend income	$ 81	$ 80	79
Zhuhai Cellulose Fibers Co. Ltd. [Member] | Consumer Specialties [Member]
Schedule of Cost-method Investments [Line Items]
Ownership percentage	30.00%	30.00%
Carrrying value	$ 30	$ 30
Dividend income	$ 14	$ 13	13
InfraServ GmbH & Co. Wiesbaden KG [Member] | Other Activities [Member]
Schedule of Cost-method Investments [Line Items]
Ownership percentage	8.00%	8.00%
Carrrying value	$ 5	$ 5
Dividend income	1	1	1
Other Cost Method Investee [Member]
Schedule of Cost-method Investments [Line Items]
Carrrying value	1	0
Dividend income	$ 0	$ 0	$ 0