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v3.20.2

Investments (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) railroad | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($)
Schedule of Investments [Line Items] |  |  |  |  |
Number of North American railroads | railroad |  |  | 8 |  |
Impairment of investment |  |  | $ 99 | $ 0 |
Equity Method Investment, Nonconsolidated Investee, Other |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Impairment of investment | $ 99 |  |  |  |
Equity method invesment impact on net income (loss) | $ 74 |  | $ 74 |  |
Equity Method Investee |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | 58.00% |  | 58.00% |  |
Conrail Voting |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | 50.00% |  | 50.00% |  |
Conrail Inc |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Equity method investments | $ 1,400 |  | $ 1,400 |  | $ 1,400
Expenses from transactions with related party | 32 | $ 37 | 97 | 112 |
Equity in the earnings of investee | 17 | 13 | 39 | 36 |
Due to affiliate, noncurrent | $ 280 |  | $ 280 |  | $ 280
Due to affiliate, average interest rate |  |  | 2.90% |  | 2.90%
TTX Company |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Equity method investment, ownership percentage | 19.65% |  | 19.65% |  |
Expenses from transactions with related party | $ 67 | 61 | $ 185 | 183 |
Equity in the earnings of investee | $ 21 | $ 19 | $ 35 | $ 44 |

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