Fair Value Measurements (Fair Value Hierarchy) (Details) - USD ($)
$ in Millions |
Apr. 30, 2021 |
Jan. 29, 2021 |
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Short-term investments |
$ 120
|
$ 23
|
| Level 1 |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Short-term investments |
120
|
23
|
| Level 2 |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Short-term investments |
0
|
0
|
| Cash equivalents |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
4,814
|
3,840
|
| Cash equivalents | Level 1 |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
4,725
|
3,738
|
| Cash equivalents | Level 2 |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
89
|
102
|
| Money-market funds |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
4,725
|
3,738
|
| Money-market funds | Level 1 |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
4,725
|
3,738
|
| Money-market funds | Level 2 |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
0
|
0
|
| Time deposits |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
89
|
102
|
| Time deposits | Level 1 |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
0
|
0
|
| Time deposits | Level 2 |
|
|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |
|
|
| Cash equivalents |
$ 89
|
$ 102
|