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Leases Leases (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Leases [Abstract] |  |
Jointly Owned Utility Plant, Ownership Amount of Construction Work in Progress | $ 17 |
Operating Lease, Liability | 26 | $ 44
Operating Lease, Liability, Related to Power Purchase Agreements | 161 | 25
Lessee, Operating Lease, Lease Not yet Commenced, Estimated Present Value of Future Lease Payments | 30 |
Operating Lease, Liability, Current | 4 | 8
Operating Lease, Liability, Noncurrent | 22 | $ 36
Lessee, Operating Lease, Liability, Payments, Due | 56 |
Future estimated operating lease payments | 32 |
Future estimated operating lease liability, current | $ 2 |

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- Definition Future estimated operating lease liability, current. For lease to start during 2022. + References No definition available. + Details
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- Definition Future estimated operating lease payments - estimated lease payments for the period after 5 years in the future on a lease that has not yet commenced. + References No definition available. + Details
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- Definition Lessee, Operating Lease, Lease Not yet Commenced, Estimated Present Value of Future Lease Payments + References No definition available. + Details
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- Definition Operating Lease, Liability, Related to Power Purchase Agreements + References No definition available. + Details
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- Definition The period end amount of construction work in progress at a jointly owned electricity generation plant. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 10.C) -URI http://asc.fasb.org/extlink&oid=122136288&loc=d3e659983-123033 + Details
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- References No definition available. + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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