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Product Warranty | 6 Months Ended
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Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract] |
Guarantees and Indemnifications | PRODUCT WARRANTIES We offer warranties on the sale of most of our products and record an accrual for estimated future claims. Such accruals are based upon historical experience and management’s estimate of the level of future claims. The activity in warranty reserves for the three and six months ended June 30, 2021, and 2020, is summarized in the following table:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Beginning balance | $ | 8 |  |  | $ | 8 |  |  | $ | 8 |  |  | $ | 8 |
Accrued to expense | — |  |  | — |  |  | 1 |  |  | 1 |
Payments made | — |  |  | — |  |  | (1) |  |  | (1) |
Total warranty reserves | 8 |  |  | 8 |  |  | 8 |  |  | 8 |
Current portion of warranty reserves (included in Other current liabilities) | (2) |  |  | (2) |  |  | (2) |  |  | (2) |
Long-term portion of warranty reserves (included in Other long-term liabilities) | $ | 6 |  |  | $ | 6 |  |  | $ | 6 |  |  | $ | 6 |
We continue to monitor warranty and other claims associated with these products and believe as of June 30, 2021, that the warranty reserve balances associated with these matters are adequate to cover future warranty payments. However, it is possible that additional changes may be required in the future.

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