CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Net income	$ 292		$ 267		$ 558		$ 445
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Net of Tax, Total	(273)	[1]	(219)	[1]	(273)	[1]	(219)	[1]
Preferred dividends of subsidiaries	(1)		(1)		(1)		(3)
Before-Tax Amount [Member]
Net income	363		278		737		636
Comprehensive income, net of income tax
Foreign currency translation adjustments	2		134		(41)		144
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	8		2		13		7
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	(12)		33		(20)		13
Other Comprehensive Income (Loss), Net of Tax, Total	(2)		169		(48)		164
Total Comprehensive Income	361		447		689		800
Preferred dividends of subsidiaries	(1)		(1)		(1)		(3)
Total comprehensive income, after preferred dividends of subsidiaries	360		446		688		797
Income Tax (Expense) Benefit [Member]
Net income	(93)		(32)		(220)		(210)
Comprehensive income, net of income tax
Foreign currency translation adjustments	0		0		0		0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(3)		(1)		(5)		(3)
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	5		(10)		8		(4)
Other Comprehensive Income (Loss), Net of Tax, Total	2		(11)		3		(7)
Total Comprehensive Income	(91)		(43)		(217)		(217)
Preferred dividends of subsidiaries	0		0		0		0
Total comprehensive income, after preferred dividends of subsidiaries	(91)		(43)		(217)		(217)
Net-of-Tax Amount [Member]
Net income	270		246		517		426
Comprehensive income, net of income tax
Foreign currency translation adjustments	2		134		(41)		144
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	5		1		8		4
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	(7)		23		(12)		9
Other Comprehensive Income (Loss), Net of Tax, Total	0		158		(45)		157
Total Comprehensive Income	270		404		472		583
Preferred dividends of subsidiaries	(1)		(1)		(1)		(3)
Total comprehensive income, after preferred dividends of subsidiaries	269		403		471		580
Noncontrolling Interests [Member]
Net income	22		21		41		19
Comprehensive income, net of income tax
Foreign currency translation adjustments	1		(20)		(1)		(24)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	0		0		0		0
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	(1)		15		(1)		18
Other Comprehensive Income (Loss), Net of Tax, Total	0		(5)		(2)		(6)
Total Comprehensive Income	22		16		39		13
Preferred dividends of subsidiaries	0		0		0		0
Total comprehensive income, after preferred dividends of subsidiaries	22		16		39		13
Total Equity [Member]
Net income	292		267		558		445
Comprehensive income, net of income tax
Foreign currency translation adjustments	3		114		(42)		120
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	5		1		8		4
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	(8)		38		(13)		27
Other Comprehensive Income (Loss), Net of Tax, Total	0		153		(47)		151
Total Comprehensive Income	292		420		511		596
Preferred dividends of subsidiaries	(1)		(1)		(1)		(3)
Total comprehensive income, after preferred dividends of subsidiaries	291		419		510		593
San Diego Gas and Electric Company and Subsidiary [Member]
Net income	129		73		230		154
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Net of Tax, Total	(8)	[1]	(10)	[1]	(8)	[1]	(10)	[1]
San Diego Gas and Electric Company and Subsidiary [Member] | Before-Tax Amount [Member]
Net income	192		78		374		221
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	2		1		2		1
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	0		0		0		0
Other Comprehensive Income (Loss), Net of Tax, Total	2		1		2		1
Total Comprehensive Income	194		79		376		222
San Diego Gas and Electric Company and Subsidiary [Member] | Income Tax (Expense) Benefit [Member]
Net income	(69)		(12)		(152)		(63)
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(1)		0		(1)		0
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	0		0		0		0
Other Comprehensive Income (Loss), Net of Tax, Total	(1)		0		(1)		0
Total Comprehensive Income	(70)		(12)		(153)		(63)
San Diego Gas and Electric Company and Subsidiary [Member] | Net-of-Tax Amount [Member]
Net income	123		66		222		158
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	1		1		1		1
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	0		0		0		0
Other Comprehensive Income (Loss), Net of Tax, Total	1		1		1		1
Total Comprehensive Income	124		67		223		159
San Diego Gas and Electric Company and Subsidiary [Member] | Noncontrolling Interests [Member]
Net income	6		7		8		(4)
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	0		0		0		0
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	(1)		12		(1)		15
Other Comprehensive Income (Loss), Net of Tax, Total	(1)		12		(1)		15
Total Comprehensive Income	5		19		7		11
San Diego Gas and Electric Company and Subsidiary [Member] | Total Equity [Member]
Net income	129		73		230		154
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	1		1		1		1
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax	(1)		12		(1)		15
Other Comprehensive Income (Loss), Net of Tax, Total	0		13		0		16
Total Comprehensive Income	129		86		230		170
Southern California Gas Company [Member]
Net income	81		119		159		165
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Net of Tax, Total	(18)	[1]	(17)	[1]	(18)	[1]	(17)	[1]
Southern California Gas Company [Member] | Before-Tax Amount [Member]
Net income			164				234
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax			1				1
Other Comprehensive Income (Loss), Net of Tax, Total			1				1
Total Comprehensive Income	109		165		225		235
Southern California Gas Company [Member] | Income Tax (Expense) Benefit [Member]
Net income			(45)				(69)
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax			0				0
Other Comprehensive Income (Loss), Net of Tax, Total			0				0
Total Comprehensive Income	(28)		(45)		(66)		(69)
Southern California Gas Company [Member] | Net-of-Tax Amount [Member]
Net income			119				165
Comprehensive income, net of income tax
Other Comprehensive Income (Loss), Derivatives Qualifying As Hedges, Net of Tax			1				1
Other Comprehensive Income (Loss), Net of Tax, Total			1				1
Total Comprehensive Income	$ 81		$ 120		$ 159		$ 166

[1] All amounts are net of income tax, if subject to tax, and exclude noncontrolling interests.