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Financing Arrangements - Additional Information (Detail) | 6 Months Ended |
--- | --- | ---
Oct. 30, 2015 USD ($) Extension | Oct. 24, 2014 USD ($) | Apr. 24, 2015 USD ($)
Debt Instrument [Line Items] |  |  |
Notes issued, proceeds amount | $ 0 | $ 495,000,000 |
Revolving Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility, amount | $ 250,000,000 |  |
Credit facility, date expiry | Dec. 21, 2017 |  |
Credit facility, increase in facility | $ 100,000,000 |  |
Credit facility, number of extensions | Extension | 2 |  |
Credit facility, extensions period | 1 year |  |
Credit facility, outstanding borrowings | $ 0 |  |
Revolving Credit Facility | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility, base rate | 0.20% |  |
Interest coverage ratio | 350.00% |  |
Revolving Credit Facility | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility, base rate | 1.20% |  |
Leverage ratio | 300.00% |  |
Revolving Credit Facility | Foreign Currency Sub Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility, amount | $ 100,000,000 |  |
Revolving Credit Facility | Letter Of Credit Sub Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility, amount | 50,000,000 |  |
Revolving Credit Facility | Swingline Sub Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility, amount | 10,000,000 |  |
Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Notes issued, principal amount | 1,500,000,000 |  | $ 1,500,000,000
Senior Notes | Due 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Notes issued, principal amount | $ 500,000,000 |  | 500,000,000
Notes issued, interest rate | 3.375% |  |
Senior notes, maturity date | Jun. 15, 2021 |  |
Notes issued, proceeds amount | $ 495,000,000 |  |
Senior Notes | Due 2017 |  |  |
Debt Instrument [Line Items] |  |  |
Notes issued, principal amount | $ 750,000,000 |  | 750,000,000
Notes issued, interest rate | 2.00% |  |
Senior Notes | Due 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Notes issued, principal amount | $ 250,000,000 |  | $ 250,000,000
Notes issued, interest rate | 3.25% |  |

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- Definition Amount potentially available for additional borrowing on the Line of Credit Facility. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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