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Reportable Segments Other expense (income) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |
Other (income) expense(d) | $ (945) | $ 164 | $ 12
Operating Segments | Natural Gas Pipelines |  |  |
Segment Reporting Information [Line Items] |  |  |
Other (income) expense(d) | (680) | 629 | 26
Operating Segments | Products Pipelines |  |  |
Segment Reporting Information [Line Items] |  |  |
Other (income) expense(d) | 0 | (2) | 0
Operating Segments | Terminals |  |  |
Segment Reporting Information [Line Items] |  |  |
Other (income) expense(d) | (342) | 54 | (14)
Operating Segments | CO2 |  |  |
Segment Reporting Information [Line Items] |  |  |
Other (income) expense(d) | 77 | 79 | (1)
Operating Segments | Kinder Morgan Canada |  |  |
Segment Reporting Information [Line Items] |  |  |
Other (income) expense(d) | 2 | (596) | 0
Corporate, Non-Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Other (income) expense(d) | $ (2) | $ 0 | $ 1

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- Definition Amount of other expense (income) that is infrequent in occurrence or unusual in nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=114868883&loc=SL114871943-224233 + Details
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