Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions	Oct. 03, 2021	Sep. 27, 2020
Assets [Abstract]
Total short-term investments	$ 162.2	$ 281.2
Total assets	7,131.5	4,941.1
Liabilities [Abstract]
Total liabilities	16.8	86.6
Cash and cash equivalents [Member]
Assets [Abstract]
Cash and cash equivalents	6,455.7	4,350.9
Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	87.8	216.3
Equity Securities, FV-NI	74.4	64.9
Total short-term investments	162.2	281.2
Prepaid Expenses and Other Current Assets [Member]
Assets [Abstract]
Derivative assets, Current	147.6	15.6
Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	281.7	206.1
Other long-term assets [Member]
Assets [Abstract]
Derivative assets, Noncurrent	84.3	87.3
Accrued liabilities [Member]
Liabilities [Abstract]
Derivative liabilities, Current	8.6	7.3
Other long-term liabilities [Member]
Liabilities [Abstract]
Derivative liabilities, Noncurrent	8.2	79.3
Commercial Paper [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	63.0	66.8
Corporate debt securities [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	24.7	123.6
Corporate debt securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	162.0	82.6
Auction rate securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	6.0	5.7
Foreign government obligations [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale		8.5
Foreign government obligations [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	4.0
U.S. Government Treasury Securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	76.3	94.9
State and local government obligations [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	1.5	3.6
Mortgage and other asset-backed securities [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.1	15.8
Mortgage and other asset-backed securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	31.9	19.3
Certificates of Deposit \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale		1.6
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Total assets	6,737.5	4,514.3
Liabilities [Abstract]
Total liabilities	0.3	2.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Cash and cash equivalents [Member]
Assets [Abstract]
Cash and cash equivalents	6,455.7	4,350.9
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Equity Securities, FV-NI	74.4	64.9
Total short-term investments	74.4	64.9
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Prepaid Expenses and Other Current Assets [Member]
Assets [Abstract]
Derivative assets, Current	131.1	3.6
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	76.3	94.9
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Other long-term assets [Member]
Assets [Abstract]
Derivative assets, Noncurrent	0.0	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Accrued liabilities [Member]
Liabilities [Abstract]
Derivative liabilities, Current	0.3	1.9
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Other long-term liabilities [Member]
Liabilities [Abstract]
Derivative liabilities, Noncurrent	0.0	0.1
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Commercial Paper [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Corporate debt securities [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Corporate debt securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Auction rate securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Foreign government obligations [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale		0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Foreign government obligations [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| U.S. Government Treasury Securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	76.3	94.9
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| State and local government obligations [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Mortgage and other asset-backed securities [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Mortgage and other asset-backed securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] \| Certificates of Deposit \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale		0.0
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Total assets	388.0	421.1
Liabilities [Abstract]
Total liabilities	16.5	84.6
Significant Other Observable Inputs (Level 2) [Member] \| Cash and cash equivalents [Member]
Assets [Abstract]
Cash and cash equivalents	0.0	0.0
Significant Other Observable Inputs (Level 2) [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	87.8	216.3
Equity Securities, FV-NI	0.0	0.0
Total short-term investments	87.8	216.3
Significant Other Observable Inputs (Level 2) [Member] \| Prepaid Expenses and Other Current Assets [Member]
Assets [Abstract]
Derivative assets, Current	16.5	12.0
Significant Other Observable Inputs (Level 2) [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	199.4	105.5
Significant Other Observable Inputs (Level 2) [Member] \| Other long-term assets [Member]
Assets [Abstract]
Derivative assets, Noncurrent	84.3	87.3
Significant Other Observable Inputs (Level 2) [Member] \| Accrued liabilities [Member]
Liabilities [Abstract]
Derivative liabilities, Current	8.3	5.4
Significant Other Observable Inputs (Level 2) [Member] \| Other long-term liabilities [Member]
Liabilities [Abstract]
Derivative liabilities, Noncurrent	8.2	79.2
Significant Other Observable Inputs (Level 2) [Member] \| Commercial Paper [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	63.0	66.8
Significant Other Observable Inputs (Level 2) [Member] \| Corporate debt securities [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	24.7	123.6
Significant Other Observable Inputs (Level 2) [Member] \| Corporate debt securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	162.0	82.6
Significant Other Observable Inputs (Level 2) [Member] \| Auction rate securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Significant Other Observable Inputs (Level 2) [Member] \| Foreign government obligations [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale		8.5
Significant Other Observable Inputs (Level 2) [Member] \| Foreign government obligations [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	4.0
Significant Other Observable Inputs (Level 2) [Member] \| U.S. Government Treasury Securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Significant Other Observable Inputs (Level 2) [Member] \| State and local government obligations [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	1.5	3.6
Significant Other Observable Inputs (Level 2) [Member] \| Mortgage and other asset-backed securities [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.1	15.8
Significant Other Observable Inputs (Level 2) [Member] \| Mortgage and other asset-backed securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	31.9	19.3
Significant Other Observable Inputs (Level 2) [Member] \| Certificates of Deposit \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale		1.6
Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Total assets	6.0	5.7
Liabilities [Abstract]
Total liabilities	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Cash and cash equivalents [Member]
Assets [Abstract]
Cash and cash equivalents	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Equity Securities, FV-NI	0.0	0.0
Total short-term investments	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Prepaid Expenses and Other Current Assets [Member]
Assets [Abstract]
Derivative assets, Current	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	6.0	5.7
Significant Unobservable Inputs (Level 3) [Member] \| Other long-term assets [Member]
Assets [Abstract]
Derivative assets, Noncurrent	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Accrued liabilities [Member]
Liabilities [Abstract]
Derivative liabilities, Current	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Other long-term liabilities [Member]
Liabilities [Abstract]
Derivative liabilities, Noncurrent	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Commercial Paper [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Corporate debt securities [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Corporate debt securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Auction rate securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	6.0	5.7
Significant Unobservable Inputs (Level 3) [Member] \| Foreign government obligations [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale		0.0
Significant Unobservable Inputs (Level 3) [Member] \| Foreign government obligations [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0
Significant Unobservable Inputs (Level 3) [Member] \| U.S. Government Treasury Securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| State and local government obligations [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Mortgage and other asset-backed securities [Member] \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Mortgage and other asset-backed securities [Member] \| Long-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale	$ 0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Certificates of Deposit \| Short-term investments [Member]
Assets [Abstract]
Debt Securities, Available-for-sale		$ 0.0

No definition available.

Name:	us-gaap_AssetsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

Name:	us-gaap_AssetsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

+ Details

Name:	us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

+ Details

Name:	us-gaap_DerivativeAssetsCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

+ Details

Name:	us-gaap_DerivativeAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313

+ Details

Name:	us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

+ Details

Name:	us-gaap_DerivativeLiabilitiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

+ Details

Name:	us-gaap_DerivativeLiabilitiesNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740

+ Details

Name:	us-gaap_EquitySecuritiesFvNi
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_LiabilitiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(4))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(5))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(g))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_ShortTermInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_CashAndCashEquivalentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_ShortTermInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherLongTermInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_AccruedLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialPaperMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_AuctionRateSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ForeignGovernmentDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USTreasuryAndGovernmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CertificatesOfDepositMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: