Long-term Debt - Schedule of Debt (Details) - USD ($) $ in Millions | Mar. 16, 2022 | Mar. 31, 2022 | Dec. 31, 2021 |
Debt Instrument [Line Items] | | | |
Total debt | | $ 7,818 | $ 7,778 |
Less current maturities | | (770) | (772) |
Less net debt issuance costs | | (73) | (71) |
Add premiums | | 4 | 4 |
Total long-term debt | | 6,979 | 6,939 |
2028 Senior Notes | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 850 | 850 |
Debt instrument, interest rate, stated percentage | | 4.75% | |
2031 Senior Notes | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 925 | 925 |
Debt instrument, interest rate, stated percentage | | 3.75% | |
2032 Senior Notes | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 350 | 350 |
Debt instrument, interest rate, stated percentage | | 3.75% | |
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility, due 2023 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 305 | 245 |
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility, due 2023 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.75% | |
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility, due 2023 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 82 | |
Bridge Loan, Due 2022 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 335 | 335 |
Bridge Loan, Due 2022 | SOFR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.00% | |
Subtotal project-level debt: | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 5,053 | 5,073 |
Agua Caliente Solar LLC, due 2037 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 680 | 684 |
Agua Caliente Solar LLC, due 2037 | Minimum | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, interest rate, stated percentage | | 239.50% | |
Agua Caliente Solar LLC, due 2037 | Maximum | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, interest rate, stated percentage | | 363.30% | |
Agua Caliente Solar LLC, due 2037 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 45 | |
Alta Wind Asset Management LLC, due 2031 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 13 | 13 |
Alta Wind Asset Management LLC, due 2031 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, interest rate, stated percentage | | 2.625% | |
Alta Wind Asset Management LLC, due 2031 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 0 | |
Alta Wind I-V lease financing arrangements, due 2034 and 2035 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 756 | 756 |
Alta Wind I-V lease financing arrangements, due 2034 and 2035 | Minimum | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, interest rate, stated percentage | | 5.696% | |
Alta Wind I-V lease financing arrangements, due 2034 and 2035 | Maximum | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, interest rate, stated percentage | | 7.015% | |
Alta Wind I-V lease financing arrangements, due 2034 and 2035 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 35 | |
Alta Wind Realty Investments LLC, due 2031 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 23 | 24 |
Debt instrument, interest rate, stated percentage | | 7.00% | |
Alta Wind Realty Investments LLC, due 2031 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 0 | |
Borrego, due 2024 and 2038 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | 54 | 54 |
Borrego, due 2024 and 2038 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | 0 | |
Buckthorn Solar, due 2025 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 122 | 123 |
Buckthorn Solar, due 2025 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.75% | |
Buckthorn Solar, due 2025 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 22 | |
Carlsbad Energy Holdings LLC, due 2027 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 136 | 136 |
Carlsbad Energy Holdings LLC, due 2027 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.75% | |
Carlsbad Energy Holdings LLC, due 2027 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 77 | |
Carlsbad Energy Holdings LLC, due 2038 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 407 | 407 |
Debt instrument, interest rate, stated percentage | | 4.12% | |
Carlsbad Energy Holdings LLC, due 2038 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 0 | |
Carlsbad Holdco, due 2038 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 205 | 205 |
Debt instrument, interest rate, stated percentage | | 4.21% | |
Carlsbad Holdco, due 2038 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 6 | |
CVSR Holdco Notes, due 2037 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 160 | 169 |
Debt instrument, interest rate, stated percentage | | 4.68% | |
CVSR Holdco Notes, due 2037 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 13 | |
CVSR, due 2037 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 638 | 652 |
CVSR, due 2037 | Minimum | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, interest rate, stated percentage | | 2.339% | |
CVSR, due 2037 | Maximum | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, interest rate, stated percentage | | 3.775% | |
CVSR, due 2037 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 0 | |
DG-CS Master Borrower LLC, due 2040 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 434 | 441 |
Debt instrument, interest rate, stated percentage | | 3.51% | |
DG-CS Master Borrower LLC, due 2040 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 30 | |
El Segundo Energy Center, due 2023 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 154 | 193 |
El Segundo Energy Center, due 2023 | Minimum | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.875% | |
El Segundo Energy Center, due 2023 | Maximum | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 2.50% | |
El Segundo Energy Center, due 2023 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 138 | |
Kawailoa Solar Portfolio LLC, due 2026 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 78 | 78 |
Kawailoa Solar Portfolio LLC, due 2026 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.375% | |
Kawailoa Solar Portfolio LLC, due 2026 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 14 | |
Laredo Ridge, due 2028 (d) | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 0 | 72 |
Laredo Ridge, due 2028 (d) | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 2.125% | |
Laredo Ridge, due 2028 (d) | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 0 | |
Marsh Landing, due 2023 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 72 | 84 |
Marsh Landing, due 2023 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 2.375% | |
Marsh Landing, due 2023 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 62 | |
Mililani I, due 2022 and 2024 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 79 | 0 |
Mililani I, due 2022 and 2024 | Minimum | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.00% | |
Mililani I, due 2022 and 2024 | Maximum | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.25% | |
Mililani I, due 2022 and 2024 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 3 | |
NIMH Solar, due 2024 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 175 | 176 |
NIMH Solar, due 2024 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 2.00% | |
NIMH Solar, due 2024 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 11 | |
Oahu Solar Holdings LLC, due 2026 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 86 | 86 |
Oahu Solar Holdings LLC, due 2026 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.375% | |
Oahu Solar Holdings LLC, due 2026 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 10 | |
Rosie Class B LLC, due 2027 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 78 | 78 |
Rosie Class B LLC, due 2027 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.75% | |
Rosie Class B LLC, due 2027 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 17 | |
Tapestry Wind LLC, due 2031(d) | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 0 | 85 |
Tapestry Wind LLC, due 2031(d) | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.375% | |
Tapestry Wind LLC, due 2031(d) | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 0 | |
Utah Solar Holdings, due 2036 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 273 | 273 |
Debt instrument, interest rate, stated percentage | | 3.59% | |
Utah Solar Holdings, due 2036 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 10 | |
Viento Funding II, LLC Due 2023 and 2029 | | | |
Debt Instrument [Line Items] | | | |
Total debt | $ 190 | $ 190 | 29 |
Viento Funding II, LLC Due 2023 and 2029 | SOFR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 0.10% | |
Viento Funding II, LLC Due 2023 and 2029 | SOFR and Applicable Margin | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.475% | |
Viento Funding II, LLC Due 2023 and 2029 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 34 | |
Walnut Creek, due 2023 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 62 | 74 |
Walnut Creek, due 2023 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 1.75% | |
Walnut Creek, due 2023 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 126 | |
WCEP Holdings, LLC, due 2023 | | | |
Debt Instrument [Line Items] | | | |
Total debt | | $ 29 | 30 |
WCEP Holdings, LLC, due 2023 | LIBOR | | | |
Debt Instrument [Line Items] | | | |
Debt instrument, basis spread on variable rate | | 3.00% | |
WCEP Holdings, LLC, due 2023 | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 0 | |
Other | | | |
Debt Instrument [Line Items] | | | |
Total debt | | 149 | $ 151 |
Other | Letter of Credit | | | |
Debt Instrument [Line Items] | | | |
Letters of credit outstanding, amount | | $ 191 | |
Laredo Ridge, Due 2028; Tapestry Wind, LLC, Due 2031; and Viento Funding II, LLC, Due 2023 | | | |
Debt Instrument [Line Items] | | | |
Repayments of debt | $ 186 | | |