Commitments and Contingencies - Narrative (Details) $ in Millions				1 Months Ended	12 Months Ended
	Dec. 16, 2025 defendant	Sep. 05, 2025 USD ($)	Oct. 23, 2023 USD ($)	Feb. 28, 2023 USD ($)	Dec. 31, 2025 USD ($) case	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 31, 2021 facility	Jun. 30, 2021 facility
Loss Contingencies [Line Items]
Purchases under energy contracts					$ 14,200	$ 12,200	$ 13,400
Number of facilities | facility								2
Sierra Club Et Al v. Midwest Generation L L C
Loss Contingencies [Line Items]
Number of facilities | facility									4
Direct Energy vs. Burk and Dickson Litigation
Loss Contingencies [Line Items]
Number of class action lawsuits | case					2
Remaining defendants | defendant	2
CPI Security Systems, Inc.
Loss Contingencies [Line Items]
Damages awarded				$ 50
Punitive damages awarded				$ 140
CPI Security Systems, Inc. v. Vivint Smart Home, Inc.
Loss Contingencies [Line Items]
Payments for legal settlements, judgement		$ 190
Payments for legal settlements accrued interest		34
Payments for legal settlement		$ 224
SB IP Holdings LLC (Skybell) v. Vivint Smart Home, Inc.
Loss Contingencies [Line Items]
Damages awarded			$ 45
Secured Debt | Senior Lien
Loss Contingencies [Line Items]
Long-term debt					$ 5