Debt (Carrying Value and Estimated Fair Value of Company's Long-term Debt) (Details) - USD ($) $ in Millions	6 Months Ended
Feb. 12, 2017	Aug. 28, 2016
Debt Instrument [Line Items]
Total long-term debt, carrying value	$ 5,072	$ 5,161
Less current portion, carrying value	2,257	1,100
Long-term debt, excluding current portion	2,815	4,061
Total long-term debt, fair value	5,116	5,274
Less current portion, fair value	2,264	1,130
Long-term debt, excluding current portion, fair value	$ 2,852	4,144
5.5% Senior Notes Due March 2017
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	5.50%
Debt instrument, maturity date	Mar. 15, 2017
Total long-term debt, carrying value	$ 1,100	1,100
1.125% Senior Notes Due December 2017
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	1.125%
Debt instrument, maturity date	Dec. 15, 2017
Total long-term debt, carrying value	$ 1,099	1,099
1.7% Senior Notes Due December 2019
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	1.70%
Debt instrument, maturity date	Dec. 15, 2019
Total long-term debt, carrying value	$ 1,197	1,196
1.75% Senior Notes Due February 2020
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	1.75%
Debt instrument, maturity date	Feb. 15, 2020
Total long-term debt, carrying value	$ 498	498
2.25% Senior Notes Due February 2022
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	2.25%
Debt instrument, maturity date	Feb. 15, 2022
Total long-term debt, carrying value	$ 497	497
Other Long-term Debt
Debt Instrument [Line Items]
Total long-term debt, carrying value	681	771
Fair Value, Inputs, Level 2 \| 5.5% Senior Notes Due March 2017
Debt Instrument [Line Items]
Total long-term debt, fair value	1,105	1,129
Fair Value, Inputs, Level 2 \| 1.125% Senior Notes Due December 2017
Debt Instrument [Line Items]
Total long-term debt, fair value	1,100	1,103
Fair Value, Inputs, Level 2 \| 1.7% Senior Notes Due December 2019
Debt Instrument [Line Items]
Total long-term debt, fair value	1,210	1,219
Fair Value, Inputs, Level 2 \| 1.75% Senior Notes Due February 2020
Debt Instrument [Line Items]
Total long-term debt, fair value	499	508
Fair Value, Inputs, Level 2 \| 2.25% Senior Notes Due February 2022
Debt Instrument [Line Items]
Total long-term debt, fair value	497	512
Fair Value, Inputs, Level 3 \| Other Long-term Debt
Debt Instrument [Line Items]
Total long-term debt, fair value	$ 705	$ 803

Estimated fair value of the long-term debt current portion at the balance-sheet date.

No definition available.

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- Definition

Estimated fair value of the non-current portion of long-term debt at the balance-sheet date.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: 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(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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 FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03(16))
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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. 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 FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
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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.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. 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 FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
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