Regulatory Assets, Liabilities, And Balancing Accounts (Tables)

9 Months Ended

Sep. 30, 2016

Long-Term Regulatory Assets

	Balance at
	September 30,		December 31,
(in millions)	2016		2015
Pension benefits	$	2,416	$	2,414
Deferred income taxes		3,649		3,054
Utility retained generation		376		411
Environmental compliance costs		760		748
Price risk management		96		138
Unamortized loss, net of gain, on reacquired debt		81		94
Other		156		170
Total long-term regulatory assets	$	7,534	$	7,029

Long-Term Regulatory Liabilities

	Balance at
	September 30,		December 31,
(in millions)	2016		2015
Cost of removal obligations	$	4,939	$	4,605
Recoveries in excess of asset retirement obligations		656		631
Public purpose programs		539		600
Other		479		485
Total long-term regulatory liabilities	$	6,613	$	6,321

Regulatory Balancing Accounts Receivable

	Receivable
	Balance at
	September 30,		December 31,
(in millions)	2016		2015
Electric distribution	$	43	$	380
Utility generation		-		122
Gas distribution		583		493
Energy procurement		174		262
Public purpose programs		122		155
Other		553		348
Total regulatory balancing accounts receivable	$	1,475	$	1,760

Regulatory Balancing Accounts Payable

	Payable
	Balance at
	September 30,			December 31,
(in millions)	2016			2015
Utility generation	$	47	$		-
Energy procurement		109			112
Public purpose programs		289			244
Other		319			359
Total regulatory balancing accounts payable	$	764	$		715