CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017		Sep. 30, 2018	Sep. 30, 2017
Net income (loss)	$ 334,000,000	$ 102,000,000	[1]	$ 162,000,000	$ 802,000,000	[1],[2]
Other comprehensive income (loss):
Total other comprehensive income (loss)	(9,000,000)	47,000,000		32,000,000	86,000,000
Preferred dividends of subsidiary	0	0	[1]	(1,000,000)	(1,000,000)	[1]
Mandatory convertible preferred stock dividends	(36,000,000)	0	[1]	(89,000,000)	0	[1]
Pretax amount [Member]
Net income (loss)	477,000,000	(27,000,000)		23,000,000	1,136,000,000
Other comprehensive income (loss):
Foreign currency translation adjustments	(16,000,000)	27,000,000		(78,000,000)	76,000,000
Financial instruments	22,000,000	7,000,000		145,000,000	(29,000,000)
Pension and other postretirement benefits	(14,000,000)	11,000,000		(8,000,000)	16,000,000
Total other comprehensive income (loss)	(8,000,000)	45,000,000		59,000,000	63,000,000
Comprehensive income	469,000,000	18,000,000		82,000,000	1,199,000,000
Preferred dividends of subsidiary				(1,000,000)	(1,000,000)
Comprehensive income (loss)				81,000,000	1,198,000,000
Income tax (expense) benefit [Member]
Net income (loss)	(167,000,000)	84,000,000		127,000,000	(378,000,000)
Other comprehensive income (loss):
Foreign currency translation adjustments	0	0		0	0
Financial instruments	(7,000,000)	(1,000,000)		(45,000,000)	13,000,000
Pension and other postretirement benefits	4,000,000	(4,000,000)		3,000,000	(6,000,000)
Total other comprehensive income (loss)	(3,000,000)	(5,000,000)		(42,000,000)	7,000,000
Comprehensive income	(170,000,000)	79,000,000		85,000,000	(371,000,000)
Preferred dividends of subsidiary				0	0
Comprehensive income (loss)				85,000,000	(371,000,000)
Net-of-tax amount [Member]
Net income (loss)	310,000,000	57,000,000		150,000,000	758,000,000
Other comprehensive income (loss):
Foreign currency translation adjustments	(16,000,000)	27,000,000		(78,000,000)	76,000,000
Financial instruments	15,000,000	6,000,000		100,000,000	(16,000,000)
Pension and other postretirement benefits	(10,000,000)	7,000,000		(5,000,000)	10,000,000
Total other comprehensive income (loss)	(11,000,000)	40,000,000		17,000,000	70,000,000
Comprehensive income	299,000,000	97,000,000		167,000,000	828,000,000
Preferred dividends of subsidiary				(1,000,000)	(1,000,000)
Comprehensive income (loss)				166,000,000	827,000,000
Noncontrolling Interests (after-tax) [Member]
Net income (loss)	24,000,000	45,000,000		12,000,000	44,000,000
Other comprehensive income (loss):
Foreign currency translation adjustments	(2,000,000)	(1,000,000)		(5,000,000)	10,000,000
Financial instruments	4,000,000	8,000,000		20,000,000	6,000,000
Pension and other postretirement benefits	0	0		0	0
Total other comprehensive income (loss)	2,000,000	7,000,000		15,000,000	16,000,000
Comprehensive income	26,000,000	52,000,000		27,000,000	60,000,000
Preferred dividends of subsidiary				0	0
Comprehensive income (loss)				27,000,000	60,000,000
Total [Member]
Net income (loss)	334,000,000	102,000,000		162,000,000	802,000,000
Other comprehensive income (loss):
Foreign currency translation adjustments	(18,000,000)	26,000,000		(83,000,000)	86,000,000
Financial instruments	19,000,000	14,000,000		120,000,000	(10,000,000)
Pension and other postretirement benefits	(10,000,000)	7,000,000		(5,000,000)	10,000,000
Total other comprehensive income (loss)	(9,000,000)	47,000,000		32,000,000	86,000,000
Comprehensive income	325,000,000	149,000,000		194,000,000	888,000,000
Preferred dividends of subsidiary				(1,000,000)	(1,000,000)
Comprehensive income (loss)				193,000,000	887,000,000
San Diego Gas and Electric Company [Member]
Net income (loss)	216,000,000	(19,000,000)	[1]	531,000,000	291,000,000	[1],[2]
Other comprehensive income (loss):
Total other comprehensive income (loss)	(4,000,000)	4,000,000		1,000,000	8,000,000
San Diego Gas and Electric Company [Member] | Pretax amount [Member]
Net income (loss)	258,000,000	(100,000,000)		672,000,000	348,000,000
Other comprehensive income (loss):
Financial instruments	0	0		0	0
Pension and other postretirement benefits	(8,000,000)	1,000,000		(8,000,000)	1,000,000
Total other comprehensive income (loss)	(8,000,000)	1,000,000		(8,000,000)	1,000,000
Comprehensive income	250,000,000	(99,000,000)		664,000,000	349,000,000
San Diego Gas and Electric Company [Member] | Income tax (expense) benefit [Member]
Net income (loss)	(53,000,000)	72,000,000		(151,000,000)	(72,000,000)
Other comprehensive income (loss):
Financial instruments	0	0		0	0
Pension and other postretirement benefits	2,000,000	0		2,000,000	0
Total other comprehensive income (loss)	2,000,000	0		2,000,000	0
Comprehensive income	(51,000,000)	72,000,000		(149,000,000)	(72,000,000)
San Diego Gas and Electric Company [Member] | Net-of-tax amount [Member]
Net income (loss)	205,000,000	(28,000,000)		521,000,000	276,000,000
Other comprehensive income (loss):
Financial instruments	0	0		0	0
Pension and other postretirement benefits	(6,000,000)	1,000,000		(6,000,000)	1,000,000
Total other comprehensive income (loss)	(6,000,000)	1,000,000		(6,000,000)	1,000,000
Comprehensive income	199,000,000	(27,000,000)		515,000,000	277,000,000
San Diego Gas and Electric Company [Member] | Noncontrolling Interests (after-tax) [Member]
Net income (loss)	11,000,000	9,000,000		10,000,000	15,000,000
Other comprehensive income (loss):
Financial instruments	2,000,000	3,000,000		7,000,000	7,000,000
Pension and other postretirement benefits	0	0		0	0
Total other comprehensive income (loss)	2,000,000	3,000,000		7,000,000	7,000,000
Comprehensive income	13,000,000	12,000,000		17,000,000	22,000,000
San Diego Gas and Electric Company [Member] | Total [Member]
Net income (loss)	216,000,000	(19,000,000)		531,000,000	291,000,000
Other comprehensive income (loss):
Financial instruments	2,000,000	3,000,000		7,000,000	7,000,000
Pension and other postretirement benefits	(6,000,000)	1,000,000		(6,000,000)	1,000,000
Total other comprehensive income (loss)	(4,000,000)	4,000,000		1,000,000	8,000,000
Comprehensive income	212,000,000	(15,000,000)		532,000,000	299,000,000
Southern California Gas Company [Member]
Net income (loss)	(14,000,000)	7,000,000	[1]	245,000,000	269,000,000	[1]
Other comprehensive income (loss):
Total other comprehensive income (loss)				1,000,000	1,000,000
Southern California Gas Company [Member] | Pretax amount [Member]
Net income (loss)	(21,000,000)	(7,000,000)		320,000,000	372,000,000
Other comprehensive income (loss):
Pension and other postretirement benefits				1,000,000	1,000,000
Total other comprehensive income (loss)				1,000,000	1,000,000
Comprehensive income	(21,000,000)	(7,000,000)		321,000,000	373,000,000
Southern California Gas Company [Member] | Income tax (expense) benefit [Member]
Net income (loss)	7,000,000	14,000,000		(75,000,000)	(103,000,000)
Other comprehensive income (loss):
Pension and other postretirement benefits				0	0
Total other comprehensive income (loss)				0	0
Comprehensive income	7,000,000	14,000,000		(75,000,000)	(103,000,000)
Southern California Gas Company [Member] | Net-of-tax amount [Member]
Net income (loss)	(14,000,000)	7,000,000		245,000,000	269,000,000
Other comprehensive income (loss):
Pension and other postretirement benefits				1,000,000	1,000,000
Total other comprehensive income (loss)				1,000,000	1,000,000
Comprehensive income	$ (14,000,000)	$ 7,000,000		$ 246,000,000	$ 270,000,000

[1] As adjusted for the retrospective adoption of ASU 2017-07, which we discuss in Note 2, and a reclassification to conform to current year presentation, which we discuss in Note 1.

[2] As adjusted for the retrospective adoption of ASU 2016-15 and ASU 2016-18, which we discuss in Note 2.