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Note 7 - Redeemable Noncontrolling Interests (Details Textual) - USD ($) $ in Millions | Apr. 14, 2020 | Jul. 29, 2019 | Jun. 22, 2018
--- | --- | --- | ---
Ashwoods [Member] | Hydro-Québec [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 45.00% |  |
Temporary Equity, Increase from Sale of Parent Equity Interest | $ 7 |  |
TM4 Inc. [Member] |  |  |
Temporary Equity, Stock Issued During Period, Value, New Issues |  |  | $ 102
TM4 Inc. [Member] | Hydro-Québec [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  | 45.00%
S.M.E. S.p.A. [Member] | Hydro-Québec [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  | 45.00% |
Prestolite E-Propulsion Systems (Beijing) Limited [Member] | Hydro-Québec [Member] |  |  |
Minority Interest, Ownership Percentage by Noncontrolling Owners, Increase |  | 22.50% |
SME and PEPS [Member] |  |  |
Temporary Equity, Increase from Sale of Parent Equity Interest |  | $ 64 |

X
- Definition The increase in equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
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X
- Definition Value of increase of temporary equity from sale of parent equity interest. + References No definition available. + Details
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
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- Details
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- Details
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- Details
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