Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Cash Equivalents

The cash equivalents were as follows:

	Edison International				SCE
(in millions)	March 31, 2016		December 31, 2015		March 31, 2016		December 31, 2015
Money market funds	$	36	$	37	$	7	$	8

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
(in millions)	March 31, 2016		December 31, 2015		March 31, 2016		December 31, 2015
Book balances reclassified to accounts payable	$	102	$	162	$	102	$	158

EPS Attributable to Edison International Common Shareholders

EPS attributable to Edison International common shareholders was computed as follows:

	Three months ended March 31,
(in millions, except per-share amounts)	2016		2015
Basic earnings per share – continuing operations:
Income from continuing operations attributable to common shareholders	$	270	$	299
Participating securities dividends	—		—
Income from continuing operations available to common shareholders	$	270	$	299
Weighted average common shares outstanding	326		326
Basic earnings per share – continuing operations	$	0.83	$	0.92
Diluted earnings per share – continuing operations:
Income from continuing operations available to common shareholders	$	270	$	299
Income impact of assumed conversions	—		—
Income from continuing operations available to common shareholders and assumed conversions	$	270	$	299
Weighted average common shares outstanding	326		326
Incremental shares from assumed conversions	2		3
Adjusted weighted average shares – diluted	328		329
Diluted earnings per share – continuing operations	$	0.82	$	0.91