Period remaining until debt instruments mature.

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Amount of minimum total shareholders' equity, excluding accumulated other comprehensive earnings / (losses) and the cumulative effects of an changes in accounting principles, that must be maintained in order to maintain in compliance of the debt covenant.

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Total shareholders' equity, excluding accumulated other comprehensive earnings / (losses)

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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

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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.

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

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Weighted average interest rate of debt outstanding.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

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Description of the conditions for borrowing under the credit facility including the nature of any restrictions.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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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.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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No definition available.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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Debt and Borrowing Arrangements - Additional Information (Detail) € in Millions, SFr in Millions							9 Months Ended		12 Months Ended
	Apr. 12, 2017 USD ($)	Mar. 30, 2017 USD ($)	Mar. 30, 2017 CHF (SFr)	Mar. 13, 2017 CHF (SFr)	Mar. 01, 2017 USD ($)	Oct. 13, 2016	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Jan. 26, 2017 EUR (€)	Dec. 31, 2016 USD ($)	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt repaid							$ 1,468,000,000	$ 1,757,000,000
Loss on early extinguishment of debt							$ 11,000,000
Weighted-average interest rate							2.00%		2.00%			2.20%	3.70%
Fair value of total debt							$ 19,367,000,000		$ 19,367,000,000			$ 17,882,000,000
Carrying value of total debt							18,633,000,000		18,633,000,000			17,199,000,000
Other income recorded in connection with resolution of tax matters							59,000,000
International Subsidiaries
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity							1,900,000,000		1,900,000,000			1,800,000,000
Line of credit facility outstanding amount							181,000,000		181,000,000			$ 160,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity					$ 1,500,000,000
Line of credit facility outstanding amount							0		0
Line of credit, expiration period					364 days
Revolving credit facility expiration date					Feb. 28, 2018
Revolving Credit Facility, October 11, 2021
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity							4,500,000,000		4,500,000,000
Line of credit facility outstanding amount							0		$ 0
Revolving credit facility expiration date						Oct. 11, 2018			Oct. 11, 2021
Revolving credit facility debt covenant							$ 24,600,000,000
Revolving credit facility debt covenant terms							Minimum shareholders' equity of at least $24.6 billion, excluding accumulated other comprehensive earnings/(losses) and the cumulative effects of any changes in accounting principles.
Revolving credit facility debt covenant compliance							At September 30, 2017, we complied with this covenant
Total shareholders' equity, excluding accumulated other comprehensive earnings / (losses)							$ 35,900,000,000		$ 35,900,000,000
Minimum \| Commercial Paper
Debt Instrument [Line Items]
Commercial paper, Maturity period							2 days
Maximum \| Commercial Paper
Debt Instrument [Line Items]
Commercial paper, Maturity period							66 days
6.500% U.S. dollar-denominated Notes
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 488,000,000
Debt instrument, interest rate	6.50%
Long-term debt repaid	$ 504,000,000
Loss on early extinguishment of debt	11,000,000
Decrease in accrued interest	$ 5,000,000
0.000% Swiss franc-denominated Notes
Debt Instrument [Line Items]
Debt instrument, principal amount \| SFr			SFr 175
Debt instrument, interest rate			0.00%
Swiss franc notes
Debt Instrument [Line Items]
Debt instrument, principal amount				SFr 350						$ 349,000,000
Net proceeds from issuance of notes		$ 349,000,000	SFr 349
1.125% Euro-denominated Notes
Debt Instrument [Line Items]
Debt instrument, principal amount \| €											€ 750
Debt instrument, interest rate											1.125%
0.050% Fixed Rate Notes, Mature on March 30, 2020
Debt Instrument [Line Items]
Debt instrument, principal amount				SFr 225			$ 224,000,000		224,000,000
Debt instrument, fixed interest rate				0.05%
Debt instrument maturity Year				Mar. 30, 2020
0.617% Fixed Rate Notes, Mature on September 30, 2024
Debt Instrument [Line Items]
Debt instrument, principal amount				SFr 125			$ 125,000,000		$ 125,000,000
Debt instrument, fixed interest rate				0.617%
Debt instrument maturity Year				Sep. 30, 2024