Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Estimated Useful Lives And Balances Of Utility's Property, Plant And Equipment

	Estimated Useful	Balance at December 31,
(in millions, except estimated useful lives)	Lives (years)	2016		2015
Electricity generating facilities (1)	5 to 100	$	11,308	$	9,860
Electricity distribution facilities	15 to 55		29,836		28,476
Electricity transmission facilities	15 to 75		11,412		10,196
Natural gas distribution facilities	5 to 60		11,362		10,397
Natural gas transmission and storage facilities	5 to 65		6,491		6,352
Construction work in progress			2,184		2,059
Total property, plant, and equipment			72,593		67,340
Accumulated depreciation			(22,012)		(20,617)
Net property, plant, and equipment		$	50,581	$	46,723

(1) Balance includes nuclear fuel inventories.  Stored nuclear fuel inventory is stated at weighted-average cost.  Nuclear fuel in the reactor is expensed as it is used based on the amount of energy output.  (See Note 13 below.)

Schedule Of Changes In Asset Retirement Obligations

(in millions)		2016		2015
ARO liability at beginning of year	$	3,643	$	3,575
Revision in estimated cash flows		968		13
Accretion		194		169
Liabilities settled		(121)		(114)
ARO liability at end of year	$	4,684	$	3,643

Reclassification Out Of Accumulated Other Comprehensive Income TableText Block

The changes, net of income tax, in PG&E Corporation’s accumulated other comprehensive income (loss) for the year ended December 31, 2016 consisted of the following:

	Pension		Other
(in millions, net of income tax)	Benefits		Benefits		Total
Beginning balance	$	(23)	$	16	$	(7)
Other comprehensive income before reclassifications:
Unrecognized prior service cost
(net of taxes of $37 and $15, respectively)		54		(21)		33
Unrecognized net actuarial loss
(net of taxes of $45 and $15, respectively)		(64)		21		(43)
Regulatory account transfer
(net of taxes of $5 and $0, respectively)		7		-		7
Amounts reclassified from other comprehensive income:
Amortization of prior service cost
(net of taxes of $3 and $6, respectively) (1)		5		9		14
Amortization of net actuarial loss
(net of taxes of $10 and $2, respectively) (1)		14		2		16
Regulatory account transfer
(net of taxes of $13 and $8, respectively) (1)		(18)		(11)		(29)
Net current period other comprehensive loss		(2)		-		(2)
Ending balance	$	(25)	$	16	$	(9)

(1) These components are included in the computation of net periodic pension and other postretirement benefit costs.  (See Note 11 below for additional details.)

The changes, net of income tax, in PG&E Corporation’s accumulated other comprehensive income (loss) for the year ended December 31, 2015 consisted of the following:

	Pension		Other			Other
(in millions, net of income tax)	Benefits		Benefits			Investments			Total
Beginning balance	$	(21)		$	15		$	17		$	11
Other comprehensive income before reclassifications:
Unrecognized net actuarial loss
(net of taxes of $51, $21, and $0, respectively)		(76)			(31)			-			(107)
Regulatory account transfer
(net of taxes of $51, $21, and $0, respectively)		73			31			-			104
Amounts reclassified from other comprehensive income:
Amortization of prior service cost
(net of taxes of $7, $8, and $0, respectively) (1)		8			11			-			19
Amortization of net actuarial loss
(net of taxes of $4, $1, and $0, respectively) (1)		6			3			-			9
Regulatory account transfer
(net of taxes of $10, $9, and $0, respectively) (1)		(13)			(13)			-			(26)
Realized gain on investments
(net of taxes of $0, $0, and $12, respectively)		-			-			(17)			(17)
Net current period other comprehensive loss		(2)			1			(17)			(18)
Ending balance	$	(23)		$	16		$	-		$	(7)

(1) These components are included in the computation of net periodic pension and other postretirement benefit costs.  (See Note 11 below for additional details.)