Revenue, Unearned Revenue and Remaining Performance Obligations (Remaining Performance Obligations) (Details) - USD ($)
$ in Billions |
Apr. 30, 2021 |
Jan. 29, 2021 |
| Revenue from Contract with Customer [Abstract] |
|
|
| Remaining performance obligation |
$ 11.0
|
$ 11.3
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-30 |
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| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
|
|
| Remaining performance obligation percentage |
|
55.00%
|
| Remaining performance obligation period |
|
12 months
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-05-01 |
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| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
|
|
| Remaining performance obligation percentage |
56.00%
|
|
| Remaining performance obligation period |
12 months
|
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-05-02 |
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| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
|
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| Remaining performance obligation period |
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