Reportable Segments Table - Segment Assets (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Assets	$ 57,769	$ 50,330
Investment In ETP [Member]
Assets	43,589	43,702
Investment In Regency [Member]
Assets	15,197	8,782
Investment in Trunkline LNG [Member]
Assets	1,221	1,338
Corporate and Other [Member]
Assets	757	720
Adjustments And Eliminations [Member]
Assets	$ (2,995)	$ (4,212)