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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2014
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Recognizable events No recognizable events occurred during the period. Non-recognizable events In April 2014, we initiated a commercial paper program pursuant to which we may issue short-term, unsecured commercial paper notes of up to $1.0 billion. Borrowings under the program are backed by and may not exceed the available capacity on our revolving credit facility. We expect to use the net proceeds of issuances of the notes for general partnership purposes. We currently have no notes issued under this program. In April 2014, our general partner's board of directors declared a quarterly distribution of $0.6125 per unit to be paid on May 15, 2014 to unitholders of record at the close of business on May 8, 2014. The total cash distributions expected to be paid are $139.1 million.