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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Receivables, allowances for uncollectible accounts | $ 55 | $ 62
Utility property, plant and equipment, accumulated depreciation | 9,321 | 9,000
Nonutility property, plant and equipment, accumulated depreciation | $ 102 | $ 99
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 | 325,811,206 | 325,811,206
Common stock, shares outstanding | 325,811,206 | 325,811,206
Southern California Edison Company |  |
Receivables, allowances for uncollectible accounts | $ 55 | $ 61
Utility property, plant and equipment, accumulated depreciation | 9,321 | 9,000
Nonutility property, plant and equipment, accumulated depreciation | $ 91 | $ 89
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

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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