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Other Income (Tables) | 9 Months Ended
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Sep. 30, 2020
Other Income [Abstract] |
Other Income | Other income included the following:
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
Millions | 2020 | 2019 | 2020 | 2019
Net gain on non-operating asset dispositions [a] | $ | 3 | $ | 4 |  | $ | 97 | $ | 14
Rental income |  | 29 |  | 34 |  |  | 90 |  | 96
Net periodic pension and OPEB costs |  | 12 |  | 12 |  |  | 31 |  | 28
Interest income |  | 2 |  | 10 |  |  | 11 |  | 25
Interest income on employment tax refund |  | - |  | 1 |  |  | - |  | 31
Non-operating environmental costs and other |  | (9) |  | (8) |  |  | (8) |  | (7)
Total | $ | 37 | $ | 53 |  | $ | 221 | $ | 187
[a] The nine months ended September 30, 2020 includes a $69 million gain from a land and permanent easement sale to the Illinois State Toll Highway Authority.

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- Definition Tabular disclosure of the detailed components of other nonoperating income. May include methodology, assumptions and amounts for: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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