Debt - Future Principal Payments (Details) $ in Millions	Jan. 31, 2022 USD ($)
Debt Disclosure [Abstract]
Fiscal 2023	$ 4
Fiscal 2024	1,182
Fiscal 2025	1,000
Fiscal 2026	0
Fiscal 2027	0
Thereafter	8,500
Total principal outstanding	$ 10,686

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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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 after fifth 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 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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