Short And Long-Term Debt Loss on the Early Extinguishment of Debt and Write-Off of Deferred Financing Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Debt Disclosure [Abstract]
Loss on the early extinguishment of debt	$ 0	$ 17	$ 0	$ 27
Write off of Deferred Debt Issuance Cost				$ 3