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Leases | 3 Months Ended
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Mar. 31, 2021
Leases [Abstract] |
Leases | Leases Our total operating lease expense for the three months ended March 31, 2021 and 2020 were $8 million. The total amount of variable and short-term lease payments was immaterial for all periods presented. Supplemental balance sheet and cash flow information related to operating leases is as follows:
| As of |  |
| March 31, 2021 |  | December 31, 2020 |  |
Operating lease right-of-use assets(1) | $ | 95 |  |  | $ | 94 |  |  |
Accrued liabilities | 25 |  |  | 26 |  |  |
Operating lease liabilities | 78 |  |  | 77 |  |  |
Total operating lease liabilities | $ | 103 |  |  | $ | 103 |  |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |
Operating cash flows for operating leases for the three month period ended March 31, 2021 and 2020, respectively | $ | 8 |  |  | $ | 8 |  |  |
Weighted average remaining lease term, units in years | 5 |  | 5 |  |
Weighted average discount rate | 5 | % |  | 5 | % |  |
(1) Operating lease right-of-use assets obtained in exchange for lease obligations were immaterial. |  |
Lease liability maturities:
| Remainder of 2021 |  | 2022 |  | 2023 |  | 2024 |  | 2025 |  | Thereafter |  | Less Imputed Interest |  | Total
Operating leases | $ | 23 |  |  | $ | 26 |  |  | $ | 21 |  |  | $ | 18 |  |  | $ | 12 |  |  | $ | 16 |  |  | $ | (13) |  |  | $ | 103 |
As of March 31, 2021, we did not have material additional operating leases that have not yet commenced.

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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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