Related Party Transactions Related Party balances on condensed consolidated balance sheets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	$ 165	$ 94
Accounts Payable, Related Parties	45	24
ETE [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	18	16
Accounts Payable, Related Parties	8	7
Regency [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	53	10
Accounts Payable, Related Parties	24	2
PES Joint Venture [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	7	60
Accounts Payable, Related Parties	0	13
FGT [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	29	2
Accounts Payable, Related Parties	8	0
Eastern Gulf [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	24	0
Other Related Parties [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	34	6
Accounts Payable, Related Parties	$ 5	$ 2