Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2019
Receivables, allowances for uncollectible accounts	$ 60	$ 50
Utility property, plant and equipment, accumulated depreciation	10,147	9,958
Nonutility property, plant and equipment, accumulated depreciation	$ 88	$ 86
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized	800,000,000	800,000,000
Common stock, shares issued	363,476,346	361,985,133
Common stock, shares outstanding	363,476,346	361,985,133
Southern California Edison Company
Receivables, allowances for uncollectible accounts	$ 60	$ 49
Utility property, plant and equipment, accumulated depreciation	10,147	9,958
Nonutility property, plant and equipment, accumulated depreciation	$ 81	$ 80
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized	560,000,000	560,000,000
Common stock, shares issued	434,888,104	434,888,104
Common stock, shares outstanding	434,888,104	434,888,104