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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, 2023
Dec. 31, 2022
Assets, carrying amount    
Fixed-rate loans $ 7,764.7 $ 6,859.1
Liabilities, carrying amount    
Fixed-rate debt 8,067.5 8,070.5
Assets, Fair Value    
Fixed-rate loans 7,580.8 6,582.0
Liabilities, Fair Value    
Fixed-rate debt $ 7,833.6 $ 7,715.9