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Restructuring Charges - Activities Related to Restructuring Reserves (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 29, 2021 | Jan. 24, 2020 | Jan. 29, 2021 | Jan. 24, 2020
Restructuring Cost and Reserve [Line Items] |  |  |  |
Balance at beginning of period |  |  | $ 1 | $ 19
Net charges | $ 0 | $ 0 | 42 | 21
Cash payments |  |  | (41) | (34)
Other |  |  | 0 | (4)
Balance at end of period | 2 | 2 | 2 | 2
August 2020 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Balance at beginning of period |  |  | 0 |
Net charges |  |  | 37 |
Cash payments |  |  | (35) |
Other |  |  | 0 |
Balance at end of period | 2 |  | 2 |
May 2020 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Balance at beginning of period |  |  | 0 |
Net charges |  |  | 5 |
Cash payments |  |  | (5) |
Other |  |  | 0 |
Balance at end of period | 0 |  | 0 |
May 2019 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Balance at beginning of period |  |  | 1 | 0
Net charges |  |  | 0 | 21
Cash payments |  |  | (1) | (20)
Other |  |  | 0 | 0
Balance at end of period | $ 0 | 1 | $ 0 | 1
April 2019 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Balance at beginning of period |  |  |  | 15
Net charges |  |  |  | 0
Cash payments |  |  |  | (14)
Other |  |  |  | 0
Balance at end of period |  | 1 |  | 1
November 2016 Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Balance at beginning of period |  |  |  | 4
Net charges |  |  |  | 0
Cash payments |  |  |  | 0
Other |  |  |  | (4)
Balance at end of period |  | $ 0 |  | $ 0

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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- Definition Amount of increase (decrease) in the restructuring reserve related to foreign currency translation (gain) loss and other increases (decreases). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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