Annual report pursuant to Section 13 and 15(d)

NONCONTROLLING INTERESTS (Details)

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NONCONTROLLING INTERESTS (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Noncontrolling Interest    
Stockholders' Equity Attributable to Noncontrolling Interest $ 927 $ 927
Eaton Automated Transmission Technologies    
Noncontrolling Interest    
Stockholders' Equity Attributable to Noncontrolling Interest 518 538
Cummins India Ltd.    
Noncontrolling Interest    
Stockholders' Equity Attributable to Noncontrolling Interest 347 319
Hydrogenics Corporation    
Noncontrolling Interest    
Stockholders' Equity Attributable to Noncontrolling Interest 38 50
Other    
Noncontrolling Interest    
Stockholders' Equity Attributable to Noncontrolling Interest $ 24 $ 20