Provision for Uncollectible Accounts (Tables)

9 Months Ended

Sep. 30, 2013

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Accounts Notes Loans And Financing Receivable Text Block

(Millions of Dollars)	As of September 30, 2013		As of December 31, 2012
NU	$	182.5	$	165.5
CL&P		85.8		77.6
NSTAR Electric		45.9		44.1
PSNH		7.7		6.8
WMECO		10.4		8.5