CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014 USD ($)		Jun. 30, 2013 USD ($)	Jun. 30, 2014 San Diego Gas and Electric Company and Subsidiary [Member] USD ($)		Jun. 30, 2013 San Diego Gas and Electric Company and Subsidiary [Member] USD ($)	Jun. 30, 2014 Southern California Gas Company [Member] USD ($)		Jun. 30, 2013 Southern California Gas Company [Member] USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 558		$ 445	$ 230		$ 154	$ 159		$ 165
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	574		542
Utility depreciation and amortization				261		241	212		180
Deferred income taxes and investment tax credits	105		251	132		34	59		43
Gain on sale of equity interest and assets	(29)		(74)
Plant closure (adjustment) loss	(13)		200
Utility plant closure (adjustment) loss				(13)		200
Equity earnings	(55)		(23)
Fixed-price contracts and other derivatives	(17)		(28)	(3)		(5)
Other	(6)		1	(24)		(9)	(2)		(3)
Net change in other working capital components	(125)		20	(231)		(115)	61		257
Changes in other assets	21		(237)	37		(177)	(27)		(73)
Changes in other liabilities	21		8	19		6	1		(6)
Net cash provided by operating activities	1,034		1,105	408		329	463		563
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(1,513)		(1,130)	(543)		(446)	(500)		(340)
Expenditures for investments	(160)		(5)
Proceeds from sale of equity interest and assets, net of cash sold	66		384
Proceeds from U.S. Treasury grants	0		74
Distributions from investments	6		95
Purchases of nuclear decommissioning and other trust assets	(356)		(330)	(354)		(327)
Proceeds from sales by nuclear decommissioning and other trusts	350		326	350		326
Decrease in restricted cash	87		143	62		40
Increase in restricted cash	(87)		(186)	(64)		(38)
Decrease (increase) in loans to affiliates, net							0		(235)
Decrease (increase) in loans to unconsolidated affiliates, net	(24)		0
Other cash flows from investing activities	10		2
Net cash used in investing activities	(1,621)		(627)	(549)		(445)	(500)		(575)
CASH FLOWS FROM FINANCING ACTIVITIES
Common dividends paid	(301)		(299)				0		(50)
Preferred dividends paid				0		(2)	(1)		(1)
Preferred dividends paid by subsidiaries	(1)		(3)
Proceeds from issuances of common stock	28		22
Repurchases of common stock	(37)		(45)
Issuances of long-term debt	2,345		894	100		0	248		0
Payments on long-term debt	(1,475)		(1,134)	(20)		(5)	(250)		0
Proceeds from sale of noncontrolling interests, net of $25 million in offering costs	0		574
Increase (decrease) in short-term debt, net	(54)		(10)	68		53	31		0
Distributions to noncontrolling interests	(23)		(13)	(13)		0
Other cash flows from financing activities	(10)		18	0		(4)	(2)		0
Net cash provided by (used in) financing activities	472		4	135		42	26		(51)
Effect of exchange rate changes on cash and cash equivalents	0		(3)
Increase (decrease) in cash and cash equivalents	(115)		479	(6)		(74)	(11)		(63)
Cash and cash equivalents, beginning of period	904	[1]	475	27	[1]	87	27	[1]	83
Cash and cash equivalents, end of period	789		954	21		13	16		20
Sale of noncontrolling interests offering costs			25
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	269		269	98		94	32		32
Income tax payments, net of refunds	148		78	12		19	19		58
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Nuclear facility plant reclassified to regulatory asset, net of depreciation and amortization	0		512	0		512
Accrued capital expenditures	287		214	103		68	102		81
Increase in capital lease obligations for investments in property, plant and equipment	60		0	60		0
Capital expenditures recoverable by U. S. Treasury grants receivable	0		3
Sequestration of U.S. Treasury grants receivable	0		(23)
Dividends declared but not paid	165		158	0		1
Financing of build-to-suit property	$ 32		$ 0

[1] Derived from audited financial statements.