Geographic Information Schedule of Net Property by Country (Details) - USD ($) $ in Millions		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net Property by Country [Line Items]
Net Property	[1]	$ 9,784	$ 10,008	$ 9,945
Geographic information threshold		2.00%	2.00%	2.00%
UNITED STATES
Net Property by Country [Line Items]
Net Property	[1]	$ 6,706	$ 6,570	$ 6,350
CANADA
Net Property by Country [Line Items]
Net Property	[1]	131	138	125
Denmark [Member]
Net Property by Country [Line Items]
Net Property	[1]	217	242	280
FRANCE
Net Property by Country [Line Items]
Net Property	[1]	217	239	256
SPAIN
Net Property by Country [Line Items]
Net Property	[1]	200	251	270
LUXEMBOURG
Net Property by Country [Line Items]
Net Property	[1]	222	248	250
Europe, Middle East, and Africa, Other [Member]
Net Property by Country [Line Items]
Net Property	[1]	747	883	1,006
Europe, Middle East, and Africa [Member]
Net Property by Country [Line Items]
Net Property	[1],[2]	1,603	1,863	2,062
CHINA
Net Property by Country [Line Items]
Net Property	[1]	362	306	312
Asia Pacific, Other [Member]
Net Property by Country [Line Items]
Net Property	[1]	565	539	549
Asia Pacific [Member]
Net Property by Country [Line Items]
Net Property	[1]	927	845	861
BRAZIL
Net Property by Country [Line Items]
Net Property	[1]	263	411	391
Latin America, Other [Member]
Net Property by Country [Line Items]
Net Property	[1]	154	181	156
Latin America [Member]
Net Property by Country [Line Items]
Net Property	[1]	$ 417	$ 592	$ 547

[1] Net property is presented for locations with greater than two percent of the total and includes property, plant and equipment less accumulated depreciation.

[2] Europe, Middle East, and Africa (EMEA).