Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Cash Equivalents

The cash equivalents were as follows:

	Edison International				SCE
	March 31,		December 31,		March 31,		December 31,
(in millions)	2021		2020		2021		2020
Money market funds	$	360	$	62	$	3	$	38

Cash is temporarily invested until required for check clearing. Checks issued, but not yet paid by the financial institution, are reclassified from cash to accounts payable at the end of each reporting period as follows:

	Edison International				SCE
	March 31,		December 31,		March 31,		December 31,
(in millions)	2021		2020		2021		2020
Book balances reclassified to accounts payable	$	59	$	69	$	59	$	69

Cash, Cash Equivalents and Restricted Cash

	March 31,		December 31,
(in millions)	2021		2020
Edison International:
Cash and cash equivalents	$	389	$	87
Short-term restricted cash1		1		2
Total cash, cash equivalents, and restricted cash	$	390	$	89
SCE:
Cash and cash equivalents	$	25	$	55
Short-term restricted cash1		1		1
Total cash, cash equivalents, and restricted cash	$	26	$	56

1 Reflected in "Other current assets" on Edison International’s and SCE’s consolidated balance sheets.

Changes in Allowance for Uncollectible Accounts

	Three months ended				Three months ended
	March 31, 2021				March 31, 2020
(in millions)	Customers		All others		Customers		All others
Beginning balance	$	175	$	13	$	35	$	14
Plus: current period provision for uncollectible accounts
Included in operation and maintenance expenses		6		4		16		2
Deferred to regulatory assets		34		—		—		—
Less: write-offs, net of recoveries		5		1		4		3
Ending balance	$	210	$	16	$	47	$	13

EPS Attributable to Edison International Common Shareholders

	Three months ended March 31,
(in millions, except per-share amounts)	2021		2020
Basic earnings per share:
Net income attributable to common shareholders	$	259	$	183
Participating securities dividends		—		—
Net income available to common shareholders	$	259	$	183
Weighted average common shares outstanding		379		363
Basic earnings per share	$	0.68	$	0.50
Diluted earnings per share:
Net income attributable to common shareholders	$	259	$	183
Participating securities dividends		—		—
Net income available to common shareholders	$	259	$	183
Income impact of assumed conversions		—		—
Net income available to common shareholders and assumed conversions	$	259	$	183
Weighted average common shares outstanding		379		363
Incremental shares from assumed conversions		1		1
Adjusted weighted average shares – diluted		380		364
Diluted earnings per share	$	0.68	$	0.50