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Acquisitions and Dispositions - Acquisitions (Details) |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 10, 2023 USD ($) customer $ / shares | Jan. 05, 2021 USD ($) state province customer | Feb. 28, 2023 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Mar. 09, 2023 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |
Proceeds from issuance of long-term debt |  |  |  | $ 731,000,000 | $ 0 | $ 1,100,000,000 |
Proceeds from issuance of preferred stock, net of fees |  |  |  | 635,000,000 | 0 | 0 |
Issuance of Series A Preferred Stock |  |  |  | 635,000,000 |  |  |
Proceeds from credit facilities |  |  |  | 3,020,000,000 | $ 0 | 1,415,000,000 |
Canada |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Provinces in which entity operates | province |  | 8 |  |  |  |  |
Customer Relationships |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life, years |  |  |  |  | 6 years |  |
Senior Secured First Lien Notes, due 2033 | Senior Notes |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 740,000,000
Interest rate, stated percentage |  |  |  |  |  |  | 7.00%
Vivint |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Customers | customer | 2,000,000 |  |  |  |  |  |
Acquisition, share price (in usd per share) | $ / shares | $ 12 |  |  |  |  |  |
Cash paid to acquire business | $ 2,609,000,000 |  |  |  |  |  |
Acquisition costs |  |  |  | $ 38,000,000 | $ 17,000,000 |  |
Total consideration | $ 2,623,000,000 |  |  |  |  |  |
Weighted average useful life, years | 10 years |  |  |  |  |  |
Aggregate principal of debt acquired | $ 2,700,000,000 |  |  |  |  |  |
Amortization of remaining term of debt | $ 152,000,000 |  |  |  |  |  |
Vivint | Customer Relationships |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life, years | 12 years |  |  |  |  |  |
Vivint | Technology |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life, years | 5 years |  |  |  |  |  |
Vivint | Trade Names |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life, years | 10 years |  |  |  |  |  |
Vivint | Revolving Credit Facility |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Proceeds from credit facilities | $ 900,000,000 |  |  |  |  |  |
Increase in existing borrowing commitments |  |  | $ 600,000,000 |  |  |  |
Vivint | Series A Preferred Stock |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Proceeds from issuance of preferred stock, net of fees | 635,000,000 |  |  |  |  |  |
Issuance of Series A Preferred Stock | $ 650,000,000 |  |  |  |  |  |
Preferred stock, dividend rate (as percent) | 10.25% |  |  |  |  |  |
Vivint | Senior Secured First Lien Notes, due 2033 | Senior Notes |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Proceeds from issuance of long-term debt | $ 724,000,000 |  |  |  |  |  |
Aggregate principal amount | $ 740,000,000 |  |  |  |  |  |
Interest rate, stated percentage | 7.00% |  |  |  |  |  |
Direct Energy |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Customers | customer |  | 3,000,000 |  |  |  |  |
Acquisition costs |  |  |  |  |  | $ 25,000,000 |
Total consideration |  | $ 3,625,000,000 |  |  |  |  |
Purchase price adjustment |  | 99,000,000 |  |  |  |  |
Adjusted purchase price |  | $ 3,724,000,000 |  |  |  |  |
Direct Energy | U.S. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of states in which the entity operates | state |  | 50 |  |  |  |  |
Direct Energy | Customer Relationships |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life, years |  | 12 years |  |  |  |  |
Direct Energy | Trade Names |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Weighted average useful life, years |  | 12 years |  |  |  |  |

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