Debt Instrument, Change of Control, Redemption Price, Percent

No definition available.

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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

+ Details

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Balance Type:	na
Period Type:	duration

- 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

+ Details

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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.

+ Details

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Balance Type:	na
Period Type:	duration

- 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

+ Details

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

+ Details

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- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

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-Publisher FASB
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-Topic 835
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-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

+ Details

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Period Type:	instant

- Definition

Amount, after accumulated amortization, of debt premium.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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Balance Type:	debit
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- Definition

The effective portion of losses on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

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+ Details

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- Details

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- Details

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Long-Term Debt (Narrative) (Details) - USD ($) $ in Millions					6 Months Ended
	Mar. 01, 2016	Feb. 12, 2016	Sep. 15, 2015	May 28, 2015	Jul. 31, 2016	Jan. 31, 2016
Debt Instrument [Line Items]
Debt Instrument, Redemption Price					100.00%
Debt Instrument, Change of Control, Redemption Price, Percent					101.00%
2.00% Senior Notes Due April 1, 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 1,350
Debt Instrument, Interest Rate, Stated Percentage		2.00%
Debt Instrument, Maturity Date		Apr. 01, 2021
Debt Discount		$ 5
Debt Instrument, Frequency of Periodic Payment		semi-annually on April 1 and October 1
3.00% Senior Notes Due April 1, 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 1,300
Debt Instrument, Interest Rate, Stated Percentage		3.00%
Debt Instrument, Maturity Date		Apr. 01, 2026
Debt Discount		$ 8
Debt Instrument, Frequency of Periodic Payment		semi-annually on April 1 and October 1
February 2016 Issuance [Member]
Debt Instrument [Line Items]
Debt Discount		$ 13
Debt Issuance Costs, Gross		17
February 2016 Issuance [Member] \| Interest Rate Swap [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount						$ 1,000
Loss on forward starting interest rate swaps		89
Additional 4.25% Senior Notes Due April 1, 2046 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 350
Debt Instrument, Interest Rate, Stated Percentage		4.25%
Debt Instrument, Maturity Date		Apr. 01, 2046
Debt Premium		$ 2
Debt Instrument, Frequency of Periodic Payment		semi-annually on April 1 and October 1
4.25% Senior Notes Due April 1, 2046 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 1,600		$ 1,250
Debt Instrument, Interest Rate, Stated Percentage				4.25%
Debt Instrument, Maturity Date		Apr. 01, 2046		Apr. 01, 2046
5.40% Senior Notes Due March 1, 2016 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.40%
Debt Instrument, Maturity Date	Mar. 01, 2016
Floating Rate Senior Notes Due September 15, 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 500
Debt Instrument, Maturity Date			Sep. 15, 2017