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v3.23.1

Revenue Recognition and Allowance for Credit Losses - Summary of Contract Assets and Liabilities (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2023 USD ($)
Accounts Receivable |
Opening balance as of December 31, 2022 | $ 858
Closing balance as of March 31, 2023 | 837
Increase (decrease) in accounts receivable | (21)
Other Accrued Unbilled Revenues |
Opening balance as of December 31, 2022 | 764
Closing balance as of March 31, 2023 | 398
Increase (decrease) in other accrued unbilled revenues | (366)
Contract Assets |
Opening balance as of December 31, 2022 | 4
Closing balance as of March 31, 2023 | 4
Increase (decrease) in contract assets | 0
Contract Liabilities |
Opening balance as of December 31, 2022 | 45
Closing balance as of March 31, 2023 | 56
Increase (decrease) in contract liabilities | 11
Revenue recognized included in the opening contract liability for the period | 21
Houston Electric |
Accounts Receivable |
Opening balance as of December 31, 2022 | 271
Closing balance as of March 31, 2023 | 240
Increase (decrease) in accounts receivable | (31)
Other Accrued Unbilled Revenues |
Opening balance as of December 31, 2022 | 142
Closing balance as of March 31, 2023 | 89
Increase (decrease) in other accrued unbilled revenues | (53)
Contract Liabilities |
Opening balance as of December 31, 2022 | 2
Closing balance as of March 31, 2023 | 3
Increase (decrease) in contract liabilities | 1
Revenue recognized included in the opening contract liability for the period | 1
CERC |
Accounts Receivable |
Opening balance as of December 31, 2022 | 478
Closing balance as of March 31, 2023 | 509
Increase (decrease) in accounts receivable | 31
Other Accrued Unbilled Revenues |
Opening balance as of December 31, 2022 | 573
Closing balance as of March 31, 2023 | 275
Increase (decrease) in other accrued unbilled revenues | $ (298)

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