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Leases (Tables) | 12 Months Ended
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Dec. 31, 2019
Leases [Abstract] |
Lease Cost | Lease Cost:
(In millions) | For the Year Ended December 31, 2019
Operating lease cost | $ | 109 |
Short-term lease cost | 3 |
Variable lease cost | 6 |
Sublease income | (17) |
Total lease cost | $ | 101 |
Other information:
(In millions) | For the Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | $ | 104 |
Right-of-use assets obtained in exchange for new operating lease liabilities | 215 |
Lease Term and Discount Rate for operating leases:
| December 31, 2019
Weighted average remaining lease term (in years) | 7.8
Weighted average discount rate | 5.72 | %
Schedule of Annual Payments Based on Maturities of Leases | As of December 31, 2019, annual payments based on the maturities of NRG's leases are expected to be as follows:
| (In millions)
2020 | $ | 96 |
2021 | 87 |
2022 | 87 |
2023 | 85 |
2024 | 75 |
Thereafter | 296 |
Total undiscounted lease payments | $ | 726 |
Less: present value adjustment | (170) |
Total discounted lease payments | $ | 556 |
Future minimum lease commitments under operating leases | Future minimum lease commitments under the Powerton and Joliet operating leases as of December 31, 2018 were as follows:
Period | (In millions)
2019 | $ | 1 |
2020 | 1 |
2021 | 3
2022 | 6 |
2023 | 6 |
Thereafter | 222 |
Total (a) | $ | 239 |
(a) Termination of leases could be at a significant premium to the remaining lease payments Future minimum lease commitments under operating leases, other than Powerton and Joliet, as of December 31, 2018 were as follows:
Period(a) | (In millions)
2019 | $ | 60 |
2020 | 55 |
2021 | 43 |
2022 | 40 |
2023 | 39 |
Thereafter | 95 |
Total | $ | 332 |
(a) Amounts in the table exclude future sublease income of $29 million associated with long-term leases for office locations

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 + Details
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