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Carrying Amount and Fair Value of Financial Services Fixed-Rate Loans and Fixed-Rate Debt (Detail) - Financial Services - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Assets, carrying amount    
Fixed-rate loans $ 8,879.9 $ 8,126.8
Liabilities, carrying amount    
Fixed-rate debt 10,036.4 8,720.3
Assets, Fair Value    
Fixed-rate loans 9,034.5 8,214.4
Liabilities, Fair Value    
Fixed-rate debt $ 10,119.8 $ 8,693.7