Long Term Debt (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Disclosure [Abstract]
Long-term Debt, Gross	$ 11,228	$ 12,633
Debt Instrument, Unamortized Discount (Premium), Net	(383)	(527)
Debt, Long-term and Short-term, Combined Amount	10,845	12,106
Debt Instrument, Fair Value Disclosure	$ 11,600	$ 13,000

The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Name:	us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant