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Leases Leases | 12 Months Ended
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Dec. 31, 2021
Leases [Abstract] |
Lessee, Operating Leases [Text Block] | LESSEE — Right-of-use assets are long-term by nature. The following table summarizes the amounts recognized on the Consolidated Balance Sheets related to lease asset and liability balances as of the periods indicated (in millions):
|  | Consolidated Balance Sheet Classification |  | December 31, 2021 |  |  | December 31, 2020
Assets |  |  |  |  |  |  |
Right-of-use assets — finance leases |  | Electric generation, distribution assets and other |  | $ | 125 |  |  |  | $ | 74 |
Right-of-use assets — operating leases |  | Other noncurrent assets |  | 278 |  |  |  | 275 |
Total right-of-use assets |  |  |  | $ | 403 |  |  |  | $ | 349 |
Liabilities |  |  |  |  |  |  |
Finance lease liabilities (current) |  | Non-recourse debt (current liabilities) |  | $ | 6 |  |  |  | $ | 4 |
Finance lease liabilities (noncurrent) |  | Non-recourse debt (noncurrent liabilities) |  | 128 |  |  |  | 77 |
Total finance lease liabilities |  |  |  | 134 |  |  |  | 81 |
Operating lease liabilities (current) |  | Accrued and other liabilities |  | 20 |  |  |  | 17 |
Operating lease liabilities (noncurrent) |  | Other noncurrent liabilities |  | 294 |  |  |  | 293 |
Total operating lease liabilities |  |  |  | 314 |  |  |  | 310 |
Total lease liabilities |  |  |  | $ | 448 |  |  |  | $ | 391 |
The following table summarizes supplemental balance sheet information related to leases as of the periods indicated:
Lease Term and Discount Rate | December 31, 2021 |  | December 31, 2020
Weighted-average remaining lease term — finance leases | 32 years |  | 31 years
Weighted-average remaining lease term — operating leases | 23 years |  | 23 years
Weighted-average discount rate — finance leases | 4.65 | % |  | 4.11 | %
Weighted-average discount rate — operating leases | 6.70 | % |  | 6.81 | %
The following table summarizes the components of lease expense recognized in Cost of Sales on the Consolidated Statements of Operations for the years ended (in millions):
| Twelve Months Ended December 31, |  |
Components of Lease Cost | 2021 |  | 2020 |  |
Operating lease cost | $ | 36 |  |  | $ | 36 |  |  |
Finance lease cost: |  |  |  |  |
Amortization of right-of-use assets | 4 |  |  | 3 |  |  |
Interest on lease liabilities | 4 |  |  | 4 |  |  |
Short-term lease costs | 21 |  |  | 13 |  |  |
Variable lease cost | 1 |  |  | — |  |  |
Total lease cost | $ | 66 |  |  | $ | 56 |  |  |
Operating cash outflows from operating leases included in the measurement of lease liabilities were $39 million and $41 million for the twelve months ended December 31, 2021 and 2020, respectively, and operating cash outflows from finance leases were $2 million for each of the twelve months ended December 31, 2021 and 2020. Right-of-use assets obtained in exchange for new operating lease liabilities were $37 million for the twelve months ended December 31, 2020. The following table shows the future lease payments under operating and finance leases for continuing operations together with the present value of the net lease payments as of December 31, 2021 for 2022 through 2026 and thereafter (in millions):
| Maturity of Lease Liabilities
| Finance Leases |  | Operating Leases
2022 | $ | 8 |  |  | $ | 32 |
2023 | 9 |  |  | 30 |
2024 | 7 |  |  | 29 |
2025 | 6 |  |  | 27 |
2026 | 7 |  |  | 26 |
Thereafter | 240 |  |  | 488 |
Total | 277 |  |  | 632 |
Less: Imputed interest | (143) |  |  | (318) |
Present value of lease payments | $ | 134 |  |  | $ | 314 |
Lessor, Operating Leases [Text Block] | LESSOR — The Company has operating leases for certain generation contracts that contain provisions to provide capacity to a customer, which is a stand-ready obligation to deliver energy when required by the customer. Capacity payments are generally considered lease elements as they cover the majority of available output from a facility. The allocation of contract payments between the lease and non-lease elements is made at the inception of the lease. Lease payments from such contracts are recognized as lease revenue on a straight-line basis over the lease term, whereas variable lease payments are recognized when earned. The following table presents lease revenue from operating leases in which the Company is the lessor for the periods indicated (in millions):
|  |  | Twelve Months Ended December 31,
Lease Income |  |  |  |  | 2021 |  | 2020
Total lease revenue |  |  |  |  | $ | 595 |  |  | $ | 580 |
Less: Variable lease revenue |  |  |  |  | 75 |  |  | 66 |
Total non-variable lease revenue |  |  |  |  | $ | 520 |  |  | $ | 514 |
The following table presents the underlying gross assets and accumulated depreciation of operating leases included in Property, Plant and Equipment for the periods indicated (in millions):
|  | Twelve Months Ended December 31,
Lease Assets |  | 2021 |  | 2020
Gross assets |  | $ | 2,423 |  |  | $ | 3,103 |
Accumulated depreciation |  | 765 |  |  | 1,011 |
Net assets |  | $ | 1,658 |  |  | $ | 2,092 |
The option to extend or terminate a lease is based on customary early termination provisions in the contract, such as payment defaults, bankruptcy, or lack of performance on energy delivery. The Company has not recognized any early terminations as of December 31, 2021. Certain leases may provide for variable lease payments based on usage or index-based (e.g., the U.S. Consumer Price Index) adjustments to lease payments. The following table shows the future lease receipts as of December 31, 2021 for 2022 through 2026 and thereafter (in millions):
| Future Cash Receipts for
| Sales-Type Leases |  | Operating Leases
2022 | $ | 20 |  |  | $ | 460 |
2022 | 20 |  |  | 398 |
2023 | 21 |  |  | 398 |
2024 | 21 |  |  | 399 |
2026 | 21 |  |  | 282 |
Thereafter | 315 |  |  | 747 |
Total | 418 |  |  | $ | 2,684 |
Less: Imputed interest | (198) |  |  |
Present value of total lease receipts | $ | 220 |  |  |
Battery Storage Lease Arrangements — The Company is constructing and operating projects that pair BESS with solar energy systems, which allows the project more flexibility on when to provide energy to the grid. The Company will enter into PPAs for the full output of the facility that allow customers the ability to determine when to charge and discharge the BESS. These arrangements include both lease and non-lease elements under ASC 842, with the BESS component constituting a sales-type lease. Upon commencement of the lease, the book value of the leased asset is removed from the balance sheet and a net investment in sales-type lease is recognized based on the present value of fixed payments under the contract and the residual value of the underlying asset. Due to the variable nature of lease payments under these contracts, the Company recorded losses at commencement of sales-type leases of $13 million for the year ended December 31, 2021. No losses were recorded for the year ended December 31, 2020. These amounts are recognized in Other expense in the Consolidated Statement of Operations. See Note 21—Other Income and Expense for further information. The Company recognized lease income on sales-type leases through variable payments of $3 million and $5 million and interest income of $15 million and $2 million for the years ended December 31, 2021 and 2020, respectively.

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 + Details
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- Definition The entire disclosure for lessor's operating leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=77888252 + Details
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