Fair Values (Details 1) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Liabilities [Abstract]
Derivatives	$ 221	$ 213
Total liabilities	221	213
Level 1 [Member]
Liabilities [Abstract]
Derivatives	0	0
Total liabilities	0	0
Level 2 [Member]
Liabilities [Abstract]
Derivatives	221	213
Total liabilities	221	213
Level 3 [Member]
Liabilities [Abstract]
Derivatives	0	0
Total liabilities	$ 0	$ 0