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Acquisition (Details) - USD ($) $ in Millions |  | 6 Months Ended |  |
--- | --- | --- | --- | ---
May 09, 2019 | Aug. 03, 2019 | Feb. 02, 2019 | Aug. 04, 2018
Business Acquisition [Line Items] |  |  |  |
Total purchase price, net of cash acquired |  | $ 125 |  |
Goodwill |  | 965 | $ 915 | $ 425
Critical Signal Technologies, Inc. [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Total purchase price, net of cash acquired | $ 125 |  |  |
Goodwill |  | 50 |  |
Transaction costs |  | $ 3 |  |
Customer Relationships [Member] | Critical Signal Technologies, Inc. [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets | $ 83 |  |  |
Amortization period |  | 15 years |  |

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