uncouple
US /ʌnˈkʌp.əl/
UK /ʌnˈkʌp.əl/

1.
disconnect (something) from something else, especially a railway carriage or wagon from a train
:
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The engineers worked quickly to uncouple the damaged carriage from the rest of the train.
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He had to uncouple the trailer before backing up.
2.
separate or disengage (two things) that are joined or associated
:
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It's important to uncouple work life from personal life for better well-being.
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The new policy aims to uncouple economic growth from carbon emissions.