Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2011

Significant Accounting Policies

Components of Net Periodic Benefit Cost

	Pension Benefits				Other Benefits
	Three Months Ended June 30,				Three Months Ended June 30,
(in millions)	2011		2010		2011		2010
Service cost for benefits earned		$ 82		$ 69		$ 11		$ 9
Interest cost		164		161		23		23
Expected return on plan assets		(167)		(156)		(20)		(18)
Amortization of transition obligation		-		-		6		6
Amortization of prior service cost		9		13		6		6
Amortization of unrecognized loss		12		11		1		1
Net periodic benefit cost		100		98		27		27
Less: transfer to regulatory account (1)		(36)		(58)		-		-
Total		$ 64		$ 40		$ 27		$ 27

⁽¹⁾ The Utility recorded $36 million and $58 million for the three month periods ended June 30, 2011 and 2010, respectively, to a regulatory account as the amounts are probable of recovery from customers in future rates.

	Pension Benefits				Other Benefits
	Six Months Ended June 30,				Six Months Ended June 30,
(in millions)	2011		2010		2011		2010
Service cost for benefits earned		$ 164		$ 139		$ 22		$ 19
Interest cost		328		322		46		46
Expected return on plan assets		(334)		(312)		(40)		(36)
Amortization of transition obligation		-		-		12		12
Amortization of prior service cost		18		27		12		12
Amortization of unrecognized loss		24		21		2		2
Net periodic benefit cost		200		197		54		55
Less: transfer to regulatory account (1)		(72)		(115)		-		-
Total		$ 128		$ 82		$ 54		$ 55

⁽¹⁾ The Utility recorded $72 million and $115 million for the six month periods ended June 30, 2011 and 2010, respectively, to a regulatory account as the amounts are probable of recovery from customers in future rates.