Debt (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Jan. 26, 2020 |
Jan. 27, 2019 |
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| Debt Instrument [Line Items] | ||
| Unamortized debt discount and issuance costs | $ (9) | $ (12) |
| Net carrying amount | $ 1,991 | 1,988 |
| 2.20% Notes Due 2021 | ||
| Debt Instrument [Line Items] | ||
| Expected Remaining Term (years) | 1 year 7 months 6 days | |
| Effective Interest Rate (as percent) | 2.38% | |
| Gross carrying amount | $ 1,000 | 1,000 |
| 3.20% Notes Due 2026 | ||
| Debt Instrument [Line Items] | ||
| Expected Remaining Term (years) | 6 years 7 months 6 days | |
| Effective Interest Rate (as percent) | 3.31% | |
| Gross carrying amount | $ 1,000 | $ 1,000 |
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The average effective interest rate during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Amount of unamortized debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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