Loan receivables and financed service contracts and others carrying value.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Private investment impairment

+ References

No definition available.

+ Details

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- Details

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- Definition

This item represents a financial instrument (as defined) for which it is not practicable to estimate fair value. Such disclosure may be for an individual financial instrument or a class of financial instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=29638263&loc=d3e39828-111592

+ Details

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275

+ Details

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Period Type:	duration

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 6: 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

+ Details

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Period Type:	instant

- 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

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Fair Value (Additional Information) (Details) (USD $)	3 Months Ended		6 Months Ended
Fair Value (Additional Information) (Details) (USD $)	Jan. 24, 2015	Jan. 25, 2014	Jan. 24, 2015	Jan. 25, 2014	Jul. 26, 2014
Fair Value Measurements [Line Items]
Impairment of Intangible assets	$ 56,000,000	$ 0	$ 56,000,000	$ 0
Carrying Value, Cost Method Investments	316,000,000		316,000,000		269,000,000
Senior notes, carrying value	20,517,000,000us-gaap_LongTermDebt		20,517,000,000us-gaap_LongTermDebt		20,901,000,000us-gaap_LongTermDebt
Level 2
Fair Value Measurements [Line Items]
Senior notes, fair value	22,300,000,000		22,300,000,000		22,400,000,000
Senior notes, carrying value	20,500,000,000		20,500,000,000		20,900,000,000
Level 3
Fair Value Measurements [Line Items]
Long term loan receivables and financed service contracts and others carrying value	1,900,000,000		1,900,000,000		2,100,000,000
Level 3 \| Other Nonoperating Income (Expense)
Fair Value Measurements [Line Items]
Private investment impairment	2,000,000	9,000,000	3,000,000	10,000,000
Level 3 \| Product cost of sales or operating expenses
Fair Value Measurements [Line Items]
Impairment of Intangible assets	$ 56,000,000	$ 0	$ 56,000,000	$ 0