v3.8.0.1

ACQUISTION AND DIVESTITURE ACTIVITY - ACQUISITION ACTIVITY (Details) $ in Millions |  |  |  |  |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 09, 2018 USD ($) | Mar. 08, 2018 USD ($) shares | Feb. 28, 2018 USD ($) MW | Jan. 12, 2018 USD ($) | Jan. 09, 2018 shares | Jan. 31, 2018 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2017 USD ($) | [1]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Cash paid, net of cash and cash equivalents acquired |  |  |  |  |  |  | $ (9,566) | $ 0
Repayments of debt |  |  |  | $ 800 |  | $ 800 |  |
Issuances of common stock, net of $24 in offering costs |  |  |  |  |  |  | $ 1,278 | $ 17
Oncor Electric Delivery Company LLC. [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquired percentage interest | 80.25% |  |  |  |  |  |  |
Oncor Holdings [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Consideration | $ 9,566 |  |  |  |  |  |  |
Fisterra Midstream Mexico [Member] | Sempra Mexico [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Cash consideration |  |  | $ 5 |  |  |  |  |
Commitment to Invest |  |  | $ 130 |  |  |  |  |
Generating capacity (in mw) | MW |  |  | 125 |  |  |  |  |
Term of power purchase agreement |  |  | 15 years |  |  |  |  |
Oncor Electric Delivery Company LLC Additional Acquisition [Member] | Sempra Texas Intermediate Holding Company LLC [Member] | Oncor Holdings [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Cash consideration | $ 26 |  |  |  |  |  |  |
Oncor Electric Delivery Company LLC Additional Acquisition [Member] | Oncor Electric Delivery Company LLC. [Member] | Oncor Holdings [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquired percentage interest | 0.22% |  |  |  |  |  |  |
Ownership percentage in consolidated entity | 0.22% |  |  |  |  |  |  |
Consideration | $ 26 |  |  |  |  |  |  |
Sempra Texas Holdings Corp [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Proceeds from Issuance of Debt and Equity |  |  |  |  |  | $ 7,000 |  |
Proceeds from issuance of debt |  |  |  | $ 4,900 |  |  |  |
Sempra Texas Holdings Corp [Member] | Oncor Electric Delivery Company LLC. [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquired percentage interest | 80.03% |  |  |  |  |  |  |
Sempra Texas Holdings Corp [Member] | Sempra Texas Intermediate Holding Company LLC [Member] | Oncor Holdings [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Ownership percentage in consolidated entity | 100.00% |  |  |  |  |  |  |
Sempra Texas Holdings Corp [Member] | Texas Transmission Investment LLC [Member] | Oncor Electric Delivery Company LLC. [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Ownership percentage held by noncontrolling owners | 19.75% |  |  |  |  |  |  |
Sempra Texas Holdings Corp [Member] | Oncor Holdings [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Cash consideration | $ 9,450 |  |  |  |  |  |  |
Adjustment for dividends | 31 |  |  |  |  |  |  |
Transaction costs incurred | $ 59 |  |  |  |  |  |  |
Sempra Texas Holdings Corp [Member] | Oncor Holdings [Member] | Oncor Electric Delivery Company LLC. [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Ownership percentage in consolidated entity | 80.25% |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Shares issued | shares |  | 8,556,630 |  |  | 26,869,158 |  |  |
Common Stock [Member] | Settlement of Forward Sale Contracts [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Issuances of common stock, net of $24 in offering costs |  | $ 900 |  |  |  |  |  |
Commercial Paper [Member] | Sempra Texas Holdings Corp [Member] | Oncor Holdings [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  | $ 2,600 |  |  |  |  |  |
Weighted average maturity |  | 47 days |  |  |  |  |  |
Weighted average interest rate |  | 2.20% |  |  |  |  |  |
[1] | As adjusted for the retrospective adoption of ASU 2016-18, which we discuss in Note 2.

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