Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income	$ 689	$ 423
Less: Income (loss) from discontinued operations, net of tax	(1)	(360)
Income from continuing operations	690	783
Adjustments to reconcile to net cash provided by operating activities:
Depreciation, decommissioning and amortization	1,224	1,187
Regulatory impacts of net nuclear decommissioning trust earnings	265	147
Other amortization and other	54	51
Asset impairment	575	0
Gain on sale of assets and other	(2)	(65)
Stock-based compensation	18	24
Deferred income taxes and investment tax credits	257	176
Proceeds from U.S. treasury grants	0	29
Changes in operating assets and liabilities:
Receivables	(406)	(328)
Inventory	68	13
Margin and collateral deposits, net of collateral received	(74)	6
Prepaid taxes	(5)	319
Other current assets	(276)	(254)
Accounts payable	155	162
Accrued taxes	27	61
Other current liabilities	(130)	(124)
Derivative assets and liabilities, net	207	1
Regulatory assets and liabilities, net	94	210
Other assets	127	(26)
Other liabilities	(615)	326
Operating cash flows from continuing operations	2,253	2,698
Operating cash flows from discontinued operations, net	0	(540)
Net cash provided by operating activities	2,253	2,158
Cash flows from financing activities:
Long-term debt issued	398	395
Long-term debt issuance costs	(4)	(4)
Long-term debt repaid	(5)	(4)
Bonds remarketed, net	195	0
Bonds purchased	(196)	0
Preference stock issued, net	387	804
Preference stock redeemed	(400)	(75)
Short-term debt financing, net	1,352	(31)
Settlements of stock-based compensation, net	(40)	(34)
Dividends to noncontrolling interests	(82)	(63)
Dividends paid	(330)	(318)
Financing cash flows from continuing operations	1,275	670
Financing cash flows from discontinued operations, net	0	354
Net cash provided by financing activities	1,275	1,024
Cash flows from investing activities:
Capital expenditures	(2,761)	(3,105)
Proceeds from sale of nuclear decommissioning trust investments	4,574	1,525
Purchases of nuclear decommissioning trust investments and other	(4,857)	(1,689)
Proceeds from sale of interest in project, net	0	107
Investments in new businesses	(18)	0
Customer advances for construction and other investments	(26)	7
Investing cash flows from continuing operations	(3,088)	(3,155)
Investing cash flows from discontinued operations, net	0	(361)
Net cash used by investing activities	(3,088)	(3,516)
Net (decrease) increase in cash and cash equivalents	440	(334)
Cash and cash equivalents at beginning of period	170	1,469
Cash and cash equivalents at end of period	610	1,135
Cash and cash equivalents from discontinued operations	0	753
Cash and cash equivalents from continuing operations	610	382
Southern California Edison
Cash flows from operating activities:
Net income	717	802
Adjustments to reconcile to net cash provided by operating activities:
Depreciation, decommissioning and amortization	1,223	1,187
Regulatory impacts of net nuclear decommissioning trust earnings	265	147
Other amortization	55	55
Asset impairment	575	0
Stock-based compensation	11	13
Deferred income taxes and investment tax credits	197	426
Proceeds from U.S. treasury grants	0	29
Changes in operating assets and liabilities:
Receivables	(371)	(336)
Inventory	68	13
Margin and collateral deposits, net of collateral received	(74)	6
Prepaid taxes	26	230
Other current assets	(279)	(295)
Accounts payable	174	165
Accrued taxes	76	49
Other current liabilities	(131)	(120)
Derivative assets and liabilities, net	207	63
Regulatory assets and liabilities, net	94	147
Other assets	142	(26)
Other liabilities	(629)	101
Net cash provided by operating activities	2,346	2,656
Cash flows from financing activities:
Long-term debt issued	398	395
Long-term debt issuance costs	(4)	(4)
Long-term debt repaid	(5)	(4)
Bonds remarketed, net	195	0
Bonds purchased	(196)	0
Preference stock issued, net	387	804
Preference stock redeemed	(400)	(75)
Short-term debt financing, net	1,178	(45)
Settlements of stock-based compensation, net	(36)	(24)
Dividends paid	(321)	(411)
Net cash provided by financing activities	1,196	636
Cash flows from investing activities:
Capital expenditures	(2,761)	(3,105)
Proceeds from sale of nuclear decommissioning trust investments	4,574	1,525
Purchases of nuclear decommissioning trust investments and other	(4,857)	(1,689)
Customer advances for construction and other investments	(21)	10
Net cash used by investing activities	(3,065)	(3,259)
Net (decrease) increase in cash and cash equivalents	477	33
Cash and cash equivalents at beginning of period	45	57
Cash and cash equivalents at end of period	$ 522	$ 90