No definition available.

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- 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=121558606&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=121553693&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=121645371&loc=d3e27161-111563

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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).

+ 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=99377092&loc=SL75136599-209740

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_LiabilitiesFairValueDisclosureAbstract
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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Fair Value of Financial Assets and Liabilities (Details) - USD ($) $ in Millions	Jul. 26, 2020	Mar. 31, 2020	Jan. 26, 2020	Sep. 30, 2016
Assets
Cash equivalents and marketable securities	$ 10,757		$ 10,781
2.20% Notes Due 2021
Liabilities
Stated interest rate	2.20%			2.20%
3.20% Notes Due 2026
Liabilities
Stated interest rate	3.20%			3.20%
2.85% Notes Due 2030
Liabilities
Stated interest rate	2.85%	2.85%
3.50% Notes Due 2040
Liabilities
Stated interest rate	3.50%	3.50%
3.50% Notes Due 2050
Liabilities
Stated interest rate	3.50%	3.50%
3.70% Notes Due 2060
Liabilities
Stated interest rate	3.70%	3.70%
Money market funds
Assets
Cash equivalents and marketable securities	$ 2,053		7,507
Corporate debt securities
Assets
Cash equivalents and marketable securities	3,497		592
Debt securities issued by United States government agencies
Assets
Cash equivalents and marketable securities	2,102		1,096
Debt securities issued by the United States Treasury
Assets
Cash equivalents and marketable securities	1,956		1,358
Certificates of deposit
Assets
Cash equivalents and marketable securities	893		27
Foreign government bonds
Assets
Cash equivalents and marketable securities	256		200
Fair Value, Inputs, Level 1 \| Money market funds
Assets
Cash equivalents and marketable securities	2,053		7,507
Fair Value, Inputs, Level 2 \| 2.20% Notes Due 2021
Liabilities
Notes	1,019		1,006
Fair Value, Inputs, Level 2 \| 3.20% Notes Due 2026
Liabilities
Notes	1,139		1,065
Fair Value, Inputs, Level 2 \| 2.85% Notes Due 2030
Liabilities
Notes	1,684		0
Fair Value, Inputs, Level 2 \| 3.50% Notes Due 2040
Liabilities
Notes	1,211		0
Fair Value, Inputs, Level 2 \| 3.50% Notes Due 2050
Liabilities
Notes	2,432		0
Fair Value, Inputs, Level 2 \| 3.70% Notes Due 2060
Liabilities
Notes	637		0
Fair Value, Inputs, Level 2 \| Corporate debt securities
Assets
Cash equivalents and marketable securities	3,497		592
Fair Value, Inputs, Level 2 \| Debt securities issued by United States government agencies
Assets
Cash equivalents and marketable securities	2,102		1,096
Fair Value, Inputs, Level 2 \| Debt securities issued by the United States Treasury
Assets
Cash equivalents and marketable securities	1,956		1,358
Fair Value, Inputs, Level 2 \| Certificates of deposit
Assets
Cash equivalents and marketable securities	893		27
Fair Value, Inputs, Level 2 \| Foreign government bonds
Assets
Cash equivalents and marketable securities	256		200
Fair Value, Inputs, Level 3
Assets
Investment in non-affiliated entities	$ 110		$ 77