Leases (Tables)
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3 Months Ended |
Apr. 30, 2019 |
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| Leases [Abstract] |
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| Lease, Cost [Table Text Block] |
The Company's lease cost consists of the following: | | | | | | (Amounts in millions) | | Three Months Ended April 30, 2019 | Operating lease cost | | $ | 636 |
| Finance lease cost | |
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| Amortization of right-of-use assets | | 111 |
| Interest on lease obligations | | 77 |
| Variable lease cost | | 167 |
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| Schedule of Other Information Relating to Lease Liabilities [Table Text Block] |
Other lease information is as follows: | | | | | | (Dollar amounts in millions) | | Three Months Ended April 30, 2019 | Cash paid for amounts included in measurement of lease obligations: | | | Operating cash flows from operating leases | | $ | 639 |
| Operating cash flows from finance leases | | 49 |
| Financing cash flows from finance leases | | 134 |
| Assets obtained in exchange for operating lease obligations | | 189 |
| Assets obtained in exchange for finance lease obligations | | 95 |
| Weighted-average remaining lease term - operating leases | | 15.8 years |
| Weighted-average remaining lease term - finance leases | | 14.4 years |
| Weighted-average discount rate - operating leases | | 5.3 | % | Weighted-average discount rate - finance leases | | 9.5 | % |
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| Lessee, Operating Lease, Liability, Maturity [Table Text Block] |
The aggregate annual lease obligations at April 30, 2019 are as follows: | | | | | | | | | | (Amounts in millions) | | | | | Fiscal Year | | Operating Leases | | Finance Leases | Remainder of 2020 | | $ | 1,819 |
| | $ | 533 |
| 2021 | | 2,346 |
| | 676 |
| 2022 | | 2,105 |
| | 621 |
| 2023 | | 1,903 |
| | 506 |
| 2024 | | 1,718 |
| | 447 |
| Thereafter | | 15,699 |
| | 5,367 |
| Total undiscounted lease obligations | | 25,590 |
| | 8,150 |
| Less imputed interest | | (8,123 | ) | | (3,905 | ) | Net lease obligations | | $ | 17,467 |
| | $ | 4,245 |
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| Lessee, Operating Lease, Disclosure [Table Text Block] |
The aggregate minimum annual lease rentals as of January 31, 2019 for the remaining contractual term of non-cancelable leases under ASC 840 were as follows: | | | | | | | | | | (Amounts in millions) | | | | | Fiscal Year | | Operating Leases(1) | | Capital Lease and Financing Obligations | 2020 | | $ | 1,856 |
| | $ | 917 |
| 2021 | | 1,655 |
| | 856 |
| 2022 | | 1,420 |
| | 794 |
| 2023 | | 1,233 |
| | 667 |
| 2024 | | 1,063 |
| | 593 |
| Thereafter | | 6,891 |
| | 6,069 |
| Total minimum rentals | | $ | 14,118 |
| | $ | 9,896 |
| Less estimated executory costs | | | | 23 |
| Net minimum lease payments | | | | 9,873 |
| Financing obligation noncash gains and other | | | | 2,278 |
| Less imputed interest | | | | (4,739 | ) | Present value of minimum lease payments | | | | $ | 7,412 |
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| | (1) | Represents minimum contractual obligation for non-cancelable leases with initial or remaining terms greater than 12 months as of January 31, 2019. |
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