SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION Interest Income and Expense (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Supplemental Income Statement Elements [Abstract]
Interest Expense	[1]	$ 160	$ 159
Investment Income, Interest	[1]	37	22
Interest Costs Capitalized		$ 7	$ 7

[1] Interest expense and interest income exclude approximately $9 million for the three months ended March 31, 2015, related to investments in and borrowings from variable interest entities for which the Company had a legal right of offset (see Note 13).