Transactions with Major Customers and Affiliates (Tables)

12 Months Ended

Dec. 31, 2013

Transactions with Major Customers and Affiliates [Abstract]

Schedule of revenue by major customers

Operating revenues received from our two major customers in 2013, 2012 and 2011 are as follows (in millions):

	2013		2012		2011
Public Service Enterprise Group	$	130.7	$	127.4	$	136.7
National Grid	88.5		93.5		98.2