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Acquisitions - Acquisitions Narrative (Details) $ in Millions	Nov. 18, 2024 USD ($) MW	Jun. 13, 2024 USD ($)	Apr. 16, 2024 USD ($) MW	Mar. 15, 2024 USD ($) MW	Dec. 28, 2023 USD ($) MW	Dec. 01, 2023 USD ($) MW	Oct. 31, 2023 USD ($) MW	Aug. 30, 2023 USD ($) MW	Feb. 17, 2023 USD ($) MW
Dan’s Mountain Drop Down
Business Acquisition [Line Items]
Payments for asset acquisition	$ 1
Net assets (liabilities) assumed	$ (2)
Dan’s Mountain Drop Down | Dan’s Mountain Parent Holdco LLC
Business Acquisition [Line Items]
Power purchase agreement period (in years)	12 years
Additional payments for asset acquisition	$ 31
Cedar Creek Drop Down
Business Acquisition [Line Items]
Net assets (liabilities) assumed			$ 17
Texas Solar Nova 2 Drop Down
Business Acquisition [Line Items]
Net assets (liabilities) assumed				$ 72
Texas Solar Nova 2 Drop Down | CEG
Business Acquisition [Line Items]
Payments to fund project reserve accounts				9
Texas Solar Nova 2 Drop Down | Clearway Renew LLC
Business Acquisition [Line Items]
Payments to acquire productive assets				17
Texas Solar Nova 2 Drop Down | TSN1 TE Holdco LLC | Cash Equity Investor
Business Acquisition [Line Items]
Payments to acquire productive assets				$ 95
Texas Solar Nova 1 Drop Down
Business Acquisition [Line Items]
Net assets (liabilities) assumed					$ (6)
Texas Solar Nova 1 Drop Down | CEG
Business Acquisition [Line Items]
Payments to fund project reserve accounts					$ 23
Rosamond Central Solar Project | Rosie Central BESS
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW						147
Power purchase agreement period (in years)						15 years
Payments for asset acquisition						$ 70
Current assets, receivables						279
Rosamond Central Solar Project | Rosie Central BESS | Cash Equity Investor
Business Acquisition [Line Items]
Payments for asset acquisition						54
Rosamond Central Solar Project | Rosie Central BESS | Tax Equity Investors
Business Acquisition [Line Items]
Current assets, receivables						215
Rosamond Central Solar Project | Rosie Central BESS | Clearway Renew LLC
Business Acquisition [Line Items]
Payments for asset acquisition						16
Current assets, receivables		$ 184				$ 64
Victory Pass and Arica Drop Down
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW							200
Power purchase agreement period (in years)							15 years
Power generation storage capacity, megawatts | MW							50
Weighted average contract duration (in years)							14 years
Victory Pass and Arica Drop Down | Clearway Renew LLC
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW							263
Power generation storage capacity, megawatts | MW							136
Additional payments for asset acquisition							$ 165
Victory Pass and Arica Drop Down | Clearway Renew LLC | Cash Equity Investor
Business Acquisition [Line Items]
Additional payments for asset acquisition							347
Daggett 2 Drop Down
Business Acquisition [Line Items]
Net assets (liabilities) assumed								$ (29)
Daggett 3 Drop Down
Business Acquisition [Line Items]
Net assets (liabilities) assumed									$ 15
VP-Arica TargetCo LLC | Victory Pass and Arica Drop Down | Clearway Renew LLC
Business Acquisition [Line Items]
Payments to acquire productive assets							165
Payments for asset acquisition							46
VP-Arica TargetCo LLC | Victory Pass and Arica Drop Down | Clearway Renew LLC | Cash Equity Investor
Business Acquisition [Line Items]
Payments for asset acquisition							$ 87
Alternative Energy | Dan’s Mountain Parent Holdco LLC | Dan’s Mountain Drop Down | Dan’s Mountain TargetCo LLC
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW	55
Payments for asset acquisition	$ 7
Alternative Energy | Cedar Creek Wind Holdco LLC | Cedar Creek Drop Down | Cedar Creek TE Holdco LLC
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW			160
Payments to acquire productive assets			$ 117
Asset acquisition, power purchase agreement, period			25 years
Alternative Energy | Lighthouse Renewable Holdco 2 LLC | Texas Solar Nova 2 Drop Down | TSN1 TE Holdco LLC
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW				200
Payments to acquire productive assets				$ 112
Asset acquisition, power purchase agreement, period				18 years
Alternative Energy | Lighthouse Renewable Holdco 2 LLC | Texas Solar Nova 1 Drop Down | Lighthouse Renewable Holdco 2 LLC
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW					252
Power purchase agreement period (in years)					18 years
Payments for asset acquisition					$ 23
Alternative Energy | Lighthouse Renewable Holdco 2 LLC | Texas Solar Nova 1 Drop Down | Lighthouse Renewable Holdco 2 LLC | Third Party Investor
Business Acquisition [Line Items]
Payments for asset acquisition					$ 109
Alternative Energy | Daggett TargetCo LLC | Daggett 2 Drop Down | Daggett TargetCo LLC
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW								182
Power purchase agreement period (in years)								15 years
Payments for asset acquisition								$ 13
Power generation storage capacity, megawatts | MW								131
Alternative Energy | Daggett TargetCo LLC | Daggett 3 Drop Down | Daggett TargetCo LLC
Business Acquisition [Line Items]
Power purchase agreement period (in years)									15 years
Payments for asset acquisition									$ 21
Alternative Energy | Daggett TargetCo LLC | Daggett 3 Drop Down | Daggett TargetCo LLC | Cash Equity Investor
Business Acquisition [Line Items]
Payments for asset acquisition									$ 129
Alternative Energy | Lighthouse Renewable Holdco LLC | Daggett 3 Drop Down | Lighthouse Renewable Holdco LLC
Business Acquisition [Line Items]
Power generation capacity, megawatts (over) | MW									300
Power generation storage capacity, megawatts | MW									149

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