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Restructuring (Composition of Restructuring Charges) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
May 01, 2021 | May 02, 2020 | May 01, 2021
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ (48) | $ 1 |
Mexico Exit And Corporate Reorganization [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | (48) |  | $ 229
Mexico Exit And Corporate Reorganization [Member] | Cost of Sales [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | (6) |  |
Mexico Exit And Corporate Reorganization [Member] | Domestic [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | (44) |  | 89
Mexico Exit And Corporate Reorganization [Member] | International [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | (4) |  | 140
Mexico Exit And Corporate Reorganization [Member] | Inventory Markdowns [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | (6) |  |
Mexico Exit And Corporate Reorganization [Member] | Inventory Markdowns [Member] | Cost of Sales [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 17
Mexico Exit And Corporate Reorganization [Member] | Inventory Markdowns [Member] | International [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | (6) |  |
Mexico Exit And Corporate Reorganization [Member] | Inventory Markdowns [Member] | International [Member] | Cost of Sales [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 17
Mexico Exit And Corporate Reorganization [Member] | Asset Impairments [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 3 |  |
Mexico Exit And Corporate Reorganization [Member] | Asset Impairments [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 70
Mexico Exit And Corporate Reorganization [Member] | Asset Impairments [Member] | Domestic [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 10
Mexico Exit And Corporate Reorganization [Member] | Asset Impairments [Member] | International [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 3 |  |
Mexico Exit And Corporate Reorganization [Member] | Asset Impairments [Member] | International [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 60
Mexico Exit And Corporate Reorganization [Member] | Termination Benefits [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | (45) |  |
Mexico Exit And Corporate Reorganization [Member] | Termination Benefits [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 98
Mexico Exit And Corporate Reorganization [Member] | Termination Benefits [Member] | Domestic [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | (44) |  |
Mexico Exit And Corporate Reorganization [Member] | Termination Benefits [Member] | Domestic [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 79
Mexico Exit And Corporate Reorganization [Member] | Termination Benefits [Member] | International [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ (1) |  |
Mexico Exit And Corporate Reorganization [Member] | Termination Benefits [Member] | International [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 19
Mexico Exit And Corporate Reorganization [Member] | Currency Translation Adjustment [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 39
Mexico Exit And Corporate Reorganization [Member] | Currency Translation Adjustment [Member] | International [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 39
Mexico Exit And Corporate Reorganization [Member] | Other [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | 5
Mexico Exit And Corporate Reorganization [Member] | Other [Member] | International [Member] | Restructuring Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  |  | $ 5
U.S. Operating Model [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  | $ 1 |

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