Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Current	$ 60	$ 36
Deferred	17	50
Total Income Tax Provision	$ 77	$ 86
Effective Tax Rate	27.60%	27.10%
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
China
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2010