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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2019
Revenue from Contract with Customer [Abstract] |
Summary of Revenue | The following table is a summary of SCE's revenue:
| Three months ended September 30, 2019 | Three months ended September 30, 2018
(in millions) | Earning Activities | Cost- Recovery Activities | Total Consolidated | Earning Activities | Cost-Recovery Activities | Total Consolidated
Revenues from contracts with customers 1,2,3 | $ | 1,862 |  | $ | 2,022 |  | $ | 3,884 |  | $ | 1,851 |  | $ | 2,255 |  | $ | 4,106 |
Alternative revenue programs and other operating revenue 4 | $ | (30 | ) | $ | (122 | ) | $ | (152 | ) | $ | (74 | ) | $ | 228 |  | $ | 154 |
Total operating revenue | $ | 1,832 |  | $ | 1,900 |  | $ | 3,732 |  | $ | 1,777 |  | $ | 2,483 |  | $ | 4,260 |
| Nine months ended September 30, 2019 | Nine months ended September 30, 2018
(in millions) | Earning Activities | Cost- Recovery Activities | Total Consolidated | Earning Activities | Cost-Recovery Activities | Total Consolidated
Revenues from contracts with customers 1,2,3 | $ | 4,896 |  | $ | 3,746 |  | $ | 8,642 |  | $ | 4,921 |  | $ | 4,593 |  | $ | 9,514 |
Alternative revenue programs and other operating revenue 4 | $ | 23 |  | $ | 683 |  | $ | 706 |  | $ | (96 | ) | $ | 199 |  | $ | 103 |
Total operating revenue | $ | 4,919 |  | $ | 4,429 |  | $ | 9,348 |  | $ | 4,825 |  | $ | 4,792 |  | $ | 9,617 |
1 | In the absence of a 2018 GRC decision, SCE recognized CPUC revenue in 2018 and the three months ended March 31, 2019 based on the 2017 authorized revenue requirement adjusted mainly for the July 2017 cost of capital decision and Tax Reform. SCE recorded the impact of the 2018 GRC final decision in the second quarter of 2019, including a $265 million reduction in revenue. The 2018 GRC final decision results in 2018 and 2019 base rate revenue requirements of $5.116 billion and $5.451 billion, respectively. For further information, see Note 1.
2 | At September 30, 2019 and December 31, 2018, SCE's receivables related to contracts from customers were $1.5 billion and $1.1 billion, respectively, which include accrued unbilled revenue of $638 million and $482 million, respectively.
3 | Includes SCE's franchise fees billed to customers of $42 million and $48 million for the three months ended September 30, 2019 and 2018, respectively, and $95 million and $104 million for the nine months ended September 30, 2019 and 2018, respectively.
4 Includes differences between amounts billed and authorized levels for both CPUC and FERC.

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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