Acquisitions	6 Months Ended
Jun. 30, 2013
Business Combinations [Abstract]
Acquisitions	Note 3: Acquisitions Boardwalk Louisiana Midstream, LLC In October 2012, the Partnership acquired Boardwalk Louisiana Midstream, LLC (Louisiana Midstream) from PL Logistics LLC for $620.2 million in cash, after customary adjustments and net of cash acquired. The purchase price was funded through a $225.0 million five-year term loan, borrowings under the Partnership's revolving credit facility and the issuance and sale of common units. In the second quarter 2013 the purchase price allocation for Louisiana Midstream was made final and was adjusted to reflect the amount of ethylene in storage at the purchase date. The December 31, 2012, Condensed Consolidated Balance Sheet was retrospectively adjusted to increase the fair value of Gas and liquids stored underground and reduce Goodwill by $3.8 million. Boardwalk HP Storage Company, LLC In February 2012, the Partnership acquired BPHC's 80% equity ownership interest in Boardwalk HP Storage Company, LLC (HP Storage) for $284.8 million in cash, which transaction was accounted for as a transaction between entities under common control. Therefore, the assets and liabilities were recognized at their carrying amounts at the date of transfer and the $3.0 million difference between the purchase price and the $281.8 million carrying amount of the net assets acquired at the date of transfer was recognized as an adjustment to partners' capital.

Acquisitions

6 Months Ended

Jun. 30, 2013

Note 3: Acquisitions

Boardwalk Louisiana Midstream, LLC

In October 2012, the Partnership acquired Boardwalk Louisiana Midstream, LLC (Louisiana Midstream) from PL Logistics LLC for $620.2 million in cash, after customary adjustments and net of cash acquired. The purchase price was funded through a $225.0 million five-year term loan, borrowings under the Partnership's revolving credit facility and the issuance and sale of common units. In the second quarter 2013 the purchase price allocation for Louisiana Midstream was made final and was adjusted to reflect the amount of ethylene in storage at the purchase date. The December 31, 2012, Condensed Consolidated Balance Sheet was retrospectively adjusted to increase the fair value of Gas and liquids stored underground and reduce Goodwill by $3.8 million.

Boardwalk HP Storage Company, LLC

In February 2012, the Partnership acquired BPHC's 80% equity ownership interest in Boardwalk HP Storage Company, LLC (HP Storage) for $284.8 million in cash, which transaction was accounted for as a transaction between entities under common control. Therefore, the assets and liabilities were recognized at their carrying amounts at the date of transfer and the $3.0 million difference between the purchase price and the $281.8 million carrying amount of the net assets acquired at the date of transfer was recognized as an adjustment to partners' capital.