Investments in Affiliated Companies (Future Lease Receipts) (Details 7) $ in Millions	Dec. 31, 2025 USD ($)
Schedule of Equity Method Investments [Line Items]
2026	$ 1,315.1
2027	1,071.1
2028	854.3
2019	641.3
2030	456.0
Thereafter	836.8
Total future receipts from leases	5,174.6
RRPF Joint Ventures [Member]
Schedule of Equity Method Investments [Line Items]
2026	588.5
2027	475.3
2028	395.0
2019	338.4
2030	286.2
Thereafter	934.7
Total future receipts from leases	3,018.1
RRPF Joint Ventures [Member] | Rolls-Royce [Member]
Schedule of Equity Method Investments [Line Items]
2026	180.4
2027	102.8
2028	68.9
2019	56.5
2030	47.5
Thereafter	73.4
Total future receipts from leases	529.5
RRPF Joint Ventures [Member] | Third Parties [Member]
Schedule of Equity Method Investments [Line Items]
2026	408.1
2027	372.5
2028	326.1
2019	281.9
2030	238.7
Thereafter	861.3
Total future receipts from leases	$ 2,488.6