Leases - Schedule of Other Information Relating to Lease Liabilities (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2026 |
Jan. 31, 2025 |
Jan. 31, 2024 |
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| Leases [Abstract] | |||
| Operating cash flows from operating leases | $ 2,315 | $ 2,390 | $ 2,273 |
| Operating cash flows from finance leases | 377 | 375 | 315 |
| Financing cash flows from finance leases | 891 | 908 | 1,055 |
| Assets obtained in exchange for operating lease obligations | 2,303 | 1,974 | 1,514 |
| Assets obtained in exchange for finance lease obligations | $ 703 | $ 1,455 | $ 1,572 |
| Weighted-average remaining lease term - operating leases | 11 years 3 months 18 days | 11 years 3 months 18 days | |
| Weighted-average remaining lease term - finance leases | 11 years 6 months | 11 years 8 months 12 days | |
| Weighted-average discount rate - operating leases | 6.70% | 6.50% | |
| Weighted-average discount rate - finance leases | 7.00% | 6.70% | |
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- Definition Amount of interest paid on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow for principal payment on finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average discount rate for finance lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for finance lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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