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

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

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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

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

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- Definition

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
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Debt - Additional Information (Detail) € in Millions, $ in Millions	1 Months Ended
	Dec. 31, 2016 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 EUR (€)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)
Debt Instrument [Line Items]
Extinguishment of debt, amount				$ 1,764
Long-term debt, excluding current maturities		$ 9,082			$ 10,550
Extinguishment of debt, gain (loss), net of tax	$ 42
1.0% Notes Due December 15, 2022
Debt Instrument [Line Items]
Debt instrument, interest rate			1.00%	1.00%
1.9% Notes Due December 15, 2026
Debt Instrument [Line Items]
Debt instrument, interest rate			1.90%	1.90%
United States of America, Dollars \| 1.0% Notes Due December 15, 2022
Debt Instrument [Line Items]
Debt instrument, face amount				$ 531
United States of America, Dollars \| 1.9% Notes Due December 15, 2026
Debt Instrument [Line Items]
Debt instrument, face amount				531
Euro Member Countries, Euro \| 1.0% Notes Due December 15, 2022
Debt Instrument [Line Items]
Debt instrument, face amount \| €			€ 500
Euro Member Countries, Euro \| 1.9% Notes Due December 15, 2026
Debt Instrument [Line Items]
Debt instrument, face amount \| €			€ 500
Long-term Debt
Debt Instrument [Line Items]
Long-term debt, excluding current maturities				$ 1,727