Regulatory Assets, Liabilities, And Balancing Accounts (Tables)

6 Months Ended

Jun. 30, 2016

Long-Term Regulatory Assets

	Balance at
	June 30,		December 31,
(in millions)	2016		2015
Pension benefits	$	2,415	$	2,414
Deferred income taxes		3,433		3,054
Utility retained generation		388		411
Environmental Compliance Costs		738		748
Price risk management		103		138
Unamortized loss, net of gain, on reacquired debt		85		94
Other		153		170
Total long-term regulatory assets	$	7,315	$	7,029

Long-Term Regulatory Liabilities

	Balance at
	June 30,		December 31,
(in millions)	2016		2015
Cost of removal obligations	$	4,832	$	4,605
Recoveries in excess of asset retirement obligations		643		631
Public purpose programs		569		600
Other		503		485
Total long-term regulatory liabilities	$	6,547	$	6,321

Regulatory Balancing Accounts Receivable

	Receivable
	Balance at
	June 30,		December 31,
(in millions)	2016		2015
Electric distribution	$	469	$	380
Utility generation		177		122
Gas distribution		380		493
Energy procurement		40		262
Public purpose programs		151		155
Other		480		348
Total regulatory balancing accounts receivable	$	1,697	$	1,760

Regulatory Balancing Accounts Payable

	Payable
	Balance at
	June 30,			December 31,
(in millions)	2016			2015
Energy procurement	$	108	$		112
Public purpose programs		245			244
Other		301			359
Total regulatory balancing accounts payable	$	654	$		715