Financial Data of Business Segments - Additional Information (Details) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) AircraftEngines Segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2021 AircraftEngines
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Number of business segments | Segment			3
Payments to Acquire Property, Plant, and Equipment | $			$ 1,130.1	$ 860.8	$ 722.8
Portfolio Management [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Number Of Aircraft Engines | AircraftEngines			14
Number of Specialized Gas Vessels | AircraftEngines			5
Portfolio Management [Member] | Rolls-Royce Aircraft Engines [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Payments to Acquire Property, Plant, and Equipment | $		$ (352.0)
Portfolio Management [Member] | Rolls-Royce Aircraft Engines [Member] | RRPF Joint Ventures [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Number Of Aircraft Engines | AircraftEngines						4
Payments For Asset Acquisition | $	$ 120.0