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Investments (Narrative) (Detail 1) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2022 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings (losses) from equity method investees |  |  |  |  |  |  |  |  |  |  | $ (26) |  | $ 21 |  | $ 15 |
Net earnings (losses) from discontinued operations including noncontrolling interest |  | $ (71) | $ (541) | $ 168 | $ 281 | $ 122 | $ 150 |  | $ 212 | $ 410 | (163) | [1],[2] | 894 | [1],[2] | 1,358 | [1],[2]
Distributions received from investment |  |  |  |  |  |  |  |  |  |  | 245 |  | 355 |  | 332 |
Finite Lived Equity Method Investment Basis Difference |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of investment that exceeded share of underlying equity |  | 18 |  |  |  | 223 |  |  |  |  | 18 |  | 223 |  |  |
Equity method investment goodwill |  | 9 |  |  |  | 9 |  |  |  |  | 9 |  | 9 |  |  |
Capitalized interest |  |  |  |  |  |  |  |  |  |  | (3) |  | (1) |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings (losses) from discontinued operations including noncontrolling interest |  |  |  |  |  |  |  |  |  |  | 235 |  | 271 |  | 244 |
Atlantic Coast Pipeline |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings (losses) from equity method investees |  |  |  |  |  |  |  |  |  |  | 15 |  | (7) |  | (20) |
Cove Point |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributions received from investment |  |  |  |  |  |  |  |  |  |  | 227 |  | 344 |  | 300 |
Cove Point | Finite Lived Equity Method Investment Basis Difference |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of investment that exceeded share of underlying equity |  |  |  |  |  | 215 |  |  |  |  |  |  | 215 |  |  |
Cove Point | Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings (losses) from equity method investees |  |  |  |  |  |  |  |  |  |  | 218 |  | 277 |  | $ 259 |
Trading Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rabbi trust securities |  | $ 119 |  |  |  | $ 111 |  |  |  |  | $ 119 |  | $ 111 |  |  |
2019 Series A Corporate Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term deposit | $ 2,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 Series A Corporate Units | Series A Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption obligation | $ 1,600 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock dividend rate percentage | 1.75% |  |  |  |  |  |  | 1.75% |  |  |  |  |  |  |  |
2019 Series A Corporate Units | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term deposit | $ 1,600 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 Series A Corporate Units | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term deposit | $ 2,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Includes income tax expense of $1.3 billion, $197 million and $374 million for the years ended December 31, 2023, 2022 and 2021, respectively.
[2] | See Note 9 for amounts attributable to related parties.

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