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Description of Business (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2021
USD ($)
Jun. 30, 2022
USD ($)
AircraftEngines
Jun. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
AircraftEngines
Jun. 30, 2022
USD ($)
Segment
AircraftEngines
Jun. 30, 2021
USD ($)
Schedule of Equity Method Investments [Line Items]            
Number of business segments | Segment         3  
Asset impairments   $ 31.5     $ 31.5 $ 0.0
Portfolio Management            
Schedule of Equity Method Investments [Line Items]            
Number of aircraft engines | AircraftEngines       14    
Asset impairments   $ 31.5     $ 31.5  
Rolls-Royce Aircraft Engines | Portfolio Management            
Schedule of Equity Method Investments [Line Items]            
Payments to Acquire Property, Plant, and Equipment       $ 352.0    
Rolls-Royce Aircraft Engines | Portfolio Management | RRPF            
Schedule of Equity Method Investments [Line Items]            
Number of aircraft engines | AircraftEngines   4   4 4  
Payments for asset acquisition $ 120.0   $ 120.0