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Unsecured Debt - Schedule of Annual Maturities of Debt (Details) - USD ($)
$ in Millions
Nov. 30, 2018
Nov. 30, 2017
Debt Disclosure [Abstract]    
2019 $ 2,426  
2020 2,143  
2021 1,101  
2022 1,081  
2023 1,776  
Thereafter 1,868  
Total Debt $ 10,394 $ 9,246