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Other Operating and Non-Operating Income (Notes) | 6 Months Ended
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Jun. 30, 2020
Nonoperating Income (Expense) [Abstract] |
Other Operating and Non-Operating Income | OTHER OPERATING AND NON-OPERATING INCOME Other operating credit and charges, net During the three months ended June 30, 2020, we recognized charges of $10 million related to the discontinuance of our fiber product (primarily related to fiber inventory adjustments to net realizable values). We recognized severance and other charges of $2 million and $4 million for the three and six months ended June 30, 2020, respectively, related to certain reorganizations and product-line discontinuance. Additionally, we recognized $4 million of Canadian wage subsidies during the three and six months ended June 30, 2020. During the three months ended June 30, 2019, we reduced our product-related warranty reserves by $4 million and recorded a gain of $1 million in insurance recoveries associated with property damage from prior years. Additionally, we recorded a charge of $1 million and $3 million for the three and six months ended June 30, 2019, respectively, related to severance associated with certain reorganizations within the corporate office and severance and other charges associated with planned curtailments. Non-operating income Non-operating income is comprised of the following components:
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2020 |  | 2019 |  | 2020 |  | 2019
Interest expense |  | $ | (6 | ) |  | $ | (5 | ) |  | $ | (11 | ) |  | $ | (9 | )
Amortization of debt charges |  | — |  |  | (1 | ) |  | (1 | ) |  | (1 | )
Capitalized interest, net of reversals |  | — |  |  | 1 |  |  | — |  |  | 2 |
Interest expense |  | (6 | ) |  | (4 | ) |  | (12 | ) |  | (8 | )
Interest income |  | 1 |  |  | 2 |  |  | 1 |  |  | 6 |
Gain on sale of auction rate securities |  | 3 |  |  | — |  |  | 3 |  |  | — |
SERP market adjustments |  | — |  |  | — |  |  | (1 | ) |  | 1 |
Investment income |  | 4 |  |  | 2 |  |  | 3 |  |  | 7 |
Net periodic pension cost, excluding service cost |  | — |  |  | (1 | ) |  | (1 | ) |  | (1 | )
Gain on acquisition of controlling interest |  | — |  |  | — |  |  | — |  |  | 14 |
Foreign currency gain (loss) |  | (1 | ) |  | (1 | ) |  | 5 |  |  | (4 | )
Other non-operating items |  | $ | (1 | ) |  | $ | (2 | ) |  | $ | 4 |  |  | $ | 9 |

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- Definition The entire disclosure for other operating income and other operating expense items. + References No definition available. + Details
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