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Significant Accounting Policies - Foreign Currency Translation (Details) - Subsidiary $ in Millions, $ in Millions, in Billions | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2018 VEF ( ) item | Sep. 30, 2018 VEF ( ) | Dec. 31, 2017 | Sep. 30, 2018 ARS ($) | Sep. 30, 2018 USD ($)
Venezuela |  |  |  |  |
Foreign Currency Translation |  |  |  |  |
Accumulated other comprehensive loss that 3M Company has recorded from its Venezuelan subsidiary |  |  |  |  | $ 145
Denominator used to determine conversion from Venezuelan Bolivar to Sovereign Bolivar. | item | 100,000 |  |  |  |
Foreign currency exchange rate | 62 | 62 |  | 62 | 62
Argentina |  |  |  |  |
Foreign Currency Translation |  |  |  |  |
Threshold percentage used to determine if economic environment is highly inflationary |  | 100.00% |  |  |
Number of years used to determine if economic environment is highly inflationary |  | 3 years |  |  |
Foreign currency exchange rate | 41 | 41 |  | 41 | 41
Maximum | Venezuela |  |  |  |  |
Foreign Currency Translation |  |  |  |  |
Balance of the Company's overall net monetary assets valued functional currency | | 2 | 2 |  |  |
Maximum | Argentina |  |  |  |  |
Foreign Currency Translation |  |  |  |  |
Operating income of subsidiaries as percent of consolidated amount high end of range |  |  | 0.50% |  |
Balance of the Company's overall net monetary assets valued functional currency |  |  |  | $ 300 |

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- Definition The accumulated other comprehensive loss that 3M Company has recorded from its Venezuelan subsidiary. + References No definition available. + Details
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- Definition The maximum balance of the Company's overall net monetary assets valued functional currency. + References No definition available. + Details
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- Definition The denominator used to determine the conversion from the Venezuelan Bolivar to the Sovereign Bolivar. + References No definition available. + Details
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- Definition The threshold percentage for determining whether an economic environment is highly inflationary for purposes of determining the functional currency of an entity. + References No definition available. + Details
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- Definition The number of years used in the calculation to determine whether an economic environment is highly inflationary for purposes of determining the functional currency of an entity. + References No definition available. + Details
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- Definition The operating income of a subsidiary (located in the highly inflationary country of Venezuela) as a percentage of the consolidated operating income, high end of range. + References No definition available. + Details
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- Definition Foreign exchange rate used to remeasure amounts denominated in a currency other than functional currency into functional currency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521 + Details
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- References No definition available. + Details
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- Details
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- Details
Name: | srt_StatementGeographicalAxis=country_VE
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- Details
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