Asset-Backed Securitization Programs (Asset-Backed Securitization Programs and Key Terms) (Details)	May 31, 2020 USD ($)
Asset-Backed Securitization Programs [Line Items]
Available liquidity under its asset-backed securitization programs (up to)	$ 136,600,000
North American
Asset-Backed Securitization Programs [Line Items]
Maximum Amount of Net Cash Proceeds	390,000,000.0
Foreign
Asset-Backed Securitization Programs [Line Items]
Maximum Amount of Net Cash Proceeds	$ 400,000,000.0