Debt - Schedule of Annual Maturities of Debt (Details)	Aug. 31, 2020 USD ($)
Debt Instrument [Line Items]
Remainder of 2020	$ 1,048,000,000
2021	1,702,000,000
2022	2,539,000,000
2023	6,686,000,000
2024	1,174,000,000
Thereafter	9,382,000,000
Total	22,532,000,000
Current unsecured debt	3,000,000,000.0
Notes due 2032, financial covenant waivers expire during second quarter 2021
Debt Instrument [Line Items]
Debt instrument, face amount	500,000,000
Notes due 2032, financial covenant waivers expire during fourth quarter 2021
Debt Instrument [Line Items]
Debt instrument, face amount	$ 800,000,000

Long-Term Debt, Maturity, after Year Four

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Face (par) amount of debt instrument at time of issuance.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in remainder of current fiscal year.

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Carrying value as of the balance sheet date of the portion of long-term, uncollateralized debt obligations due within one year or the normal operating cycle, if longer.

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