Other Information Other Current Assets (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Other Information [Abstract]
Deposits paid to vendors	$ 36	$ 65
Deferred Tax Assets, Net, Current	0	14
Income Taxes Receivable, Current	151	17
Prepaid expenses and other	174	200
Total other current assets	$ 361	$ 296