Goodwill and Intangible Assets, Net (Schedule of Finite-Lived Intangible Assets, Net) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Finite-Lived intangible Assets Rollforward
Acquisitions (Note 4)	$ 67	[1]	$ 10	[2]
Acquisitions (Note 5)	67	[1]	10	[2]
Exchange rate changes	(13)		(40)
Gross asset value	633		579		$ 609
Amortization	(9)		(11)		(20)
Exchange rate changes	13		39
Accumulated amortization	(524)		(528)		(556)
Net book value	109
Licenses [Member]
Finite-Lived intangible Assets Rollforward
Acquisitions (Note 4)	0		7
Acquisitions (Note 5)	0		7
Exchange rate changes	(2)		(1)
Gross asset value	36		38		32
Amortization	(3)		(3)
Exchange rate changes	1		1
Accumulated amortization	(27)		(25)		(23)
Net book value	9
Customer-Related Intangible Assets [Member]
Finite-Lived intangible Assets Rollforward
Acquisitions (Note 4)	64		0
Acquisitions (Note 5)	64		0
Exchange rate changes	(11)		(39)
Gross asset value	509		456		495
Amortization	(2)		(4)
Exchange rate changes	11		38
Accumulated amortization	(440)		(449)		(483)
Net book value	69
Developed Technology [Member]
Finite-Lived intangible Assets Rollforward
Acquisitions (Note 4)	0		2
Acquisitions (Note 5)	0		2
Exchange rate changes	0		0
Gross asset value	35		35		33
Amortization	(2)		(2)
Exchange rate changes	1		0
Accumulated amortization	(26)		(25)		(23)
Net book value	9
Covenants Not to Compete and Other [Member]
Finite-Lived intangible Assets Rollforward
Acquisitions (Note 4)	3		1
Acquisitions (Note 5)	3		1
Exchange rate changes	0		0
Gross asset value	53		50		49
Amortization	(2)		(2)
Exchange rate changes	0		0
Accumulated amortization	(31)		$ (29)		$ (27)
Net book value	$ 22
SO.F.TER. S.p.A. [Member]
Finite-Lived intangible Assets Rollforward
Weighted average life of intangible assets acquired	12 years
Fairway Methanol LLC [Member]
Finite-Lived intangible Assets Rollforward
Weighted average life of intangible assets acquired			16 years

[1] Primarily related to intangible assets acquired from SOFTER (Note 4) during the year ended December 31, 2016, with a weighted average amortization period of 12 years.

[2] Primarily related to intangible assets acquired by Fairway (Note 5) during the year ended December 31, 2015, with a weighted average amortization period of 16 years.