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Other Income - Net | 12 Months Ended
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Dec. 31, 2022
Other Income and Expenses [Abstract] |
Other Income - Net | Other Income - Net The Company derives income from items that are not considered operating activities. Income from these items is reported net of related expense. All components of net periodic pension and post-retirement benefit costs, excluding service cost, are included in other income - net on the consolidated income statement. Miscellaneous income (expense) may fluctuate due to timing and includes investment gains, losses and interest income as well as other non-operating activities. For discussion of the drivers of changes in net periodic pension and post-retirement benefit credit from 2021 to 2022 and from 2020 to 2021, refer to Note 9, Employee Benefit Plans. Interest income increased from 2021 to 2022 primarily as a result of higher average interest rates. Debt repurchase expense decreased from 2020 to 2021 primarily as a result of long-term debt being redeemed earlier relative to maturity date in 2020. Other income – net consisted of the following:
| Years Ended
(Dollars in Millions) | 2022 |  | 2021 |  | 2020
Net Periodic Pension and Post-retirement Benefit Credit (a) | $ | 79 |  |  | $ | 64 |  |  | $ | 42 |
Interest Income | 42 |  |  | 7 |  |  | 17 |
Debt Repurchase Expense | — |  |  | — |  |  | (48) |
Miscellaneous Income | 12 |  |  | 8 |  |  | 8 |
Total Other Income - Net | $ | 133 |  |  | $ | 79 |  |  | $ | 19 |
(a) Excludes the service cost component of net periodic benefit cost.

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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -URI https://asc.fasb.org/topic&trid=2122503 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 610 -URI https://asc.fasb.org/topic&trid=49130413 + Details
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