Acquisitions and Impairments (Details) $ in Millions	1 Months Ended	3 Months Ended
Apr. 25, 2019 USD ($) MW	Mar. 31, 2018 USD ($)
Other Assets [Member] \| Corporate and Other [Member]
Asset Impairment and Other Related Charges		$ 21
Sempra Renewables LLC [Member] \| Subsequent Event [Member] \| Generation And Marketing [Member]
Wind Generation (MWs) \| MW	724
Noncash or Part Noncash Acquisition, Value of Assets Acquired	$ 1,100
Payments to Acquire Businesses, Gross	584
Noncash or Part Noncash Acquisition, Debt Assumed	358
Noncash or Part Noncash Acquisition, Other Assets Acquired	$ 110

Wind Generation (MWs).

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