Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Current	$ 34	$ 71	$ 94	$ 108
Deferred	7	57	24	106
Total Income Tax Provision	$ 41	$ 128	$ 118	$ 214
Effective Tax Rate	17.60%	26.40%	23.10%	26.60%
US
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination			2010
Equatorial Guinea
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination			2008
Israel
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination			2009