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

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Face (par) amount of the original debt instrument that was repurchased.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Weighted average interest rate of debt outstanding.

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

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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 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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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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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Period Type:

Debt and Borrowing Arrangements - Additional Information (Details) € in Millions, £ in Millions, SFr in Millions, R$ in Millions																				12 Months Ended			15 Months Ended
	Aug. 23, 2018 USD ($)	Jul. 18, 2018 GBP (£)	Jul. 18, 2018 USD ($)	May 07, 2018 USD ($)	Apr. 17, 2018 USD ($)	Apr. 02, 2018 USD ($)	Mar. 02, 2018 USD ($)	Mar. 02, 2018 CAD ($)	Feb. 28, 2018 USD ($)	Feb. 01, 2018 USD ($)	Jan. 26, 2018 USD ($)	Jan. 26, 2018 CHF (SFr)	Sep. 30, 2017 USD ($)	Sep. 30, 2017 BRL (R$)	Apr. 12, 2017 USD ($)	Mar. 30, 2017 USD ($)	Mar. 30, 2017 CHF (SFr)	Mar. 13, 2017 CHF (SFr)	Oct. 13, 2016	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2017 USD ($)	May 03, 2018 USD ($)	Mar. 02, 2018 CAD ($)	Mar. 31, 2017 USD ($)	Mar. 30, 2017 CHF (SFr)	Jan. 26, 2017 EUR (€)	Jan. 26, 2017 USD ($)
Debt Instrument [Line Items]
Short-term borrowings																				$ 3,192,000,000	$ 3,517,000,000		$ 3,517,000,000
Deferred debt issuance costs																				32,000,000	33,000,000		$ 33,000,000
Unamortized non-cash bond premiums, discounts, bank fees and mark-to-market adjustments																				(70,000,000)
Long-term debt repaid																				1,821,000,000	1,470,000,000	$ 6,186,000,000
Long-term debt proceeds																				2,948,000,000	350,000,000	5,640,000,000
Loss on early extinguishment of debt																				$ 140,000,000	$ 11,000,000	$ 428,000,000
Weighted-average interest rate																				2.30%	2.10%	2.20%	2.10%
Fair value of total debt																				$ 18,650,000,000	$ 18,354,000,000		$ 18,354,000,000
Carrying value of total debt																				18,372,000,000	17,652,000,000		$ 17,652,000,000
Contingency provision accruals													$ 212,000,000	R$ 667
Net Investment Hedging \| Net investment hedge contracts
Debt Instrument [Line Items]
Gains (losses), net of taxes, recognized in income, excluded from effectiveness testing																				120,000,000
Interest and other expense, net
Debt Instrument [Line Items]
Contingency provision accruals													$ 59,000,000								59,000,000
6.500% U.S. Dollar-denominated Notes due February 2040
Debt Instrument [Line Items]
Debt instrument, principal amount															$ 488,000,000
Long-term debt repaid															$ 504,000,000
Debt instrument, interest rate															6.50%
Loss on early extinguishment of debt															$ 11,000,000
Decrease in accrued interest															$ 5,000,000
0.000% Swiss Franc-denominated Notes due March 2017
Debt Instrument [Line Items]
Debt instrument, principal amount																$ 175,000,000											SFr 175
Debt instrument, interest rate																0.00%											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
0.050% Swiss Franc-denominated Fixed Rate Notes due March 30, 2020
Debt Instrument [Line Items]
Debt instrument, principal amount																		SFr 225		224,000,000
Debt instrument, fixed interest rate																		0.05%
Debt instrument maturity year																		Mar. 30, 2020
0.617% Swiss Franc-denominated Fixed Rate Notes due September 30, 2024
Debt Instrument [Line Items]
Debt instrument, principal amount																		SFr 125		125,000,000
Debt instrument, fixed interest rate																		0.617%
Debt instrument maturity year																		Sep. 30, 2024
1.125% Euro-denominated Notes due January 2017
Debt Instrument [Line Items]
Debt instrument, principal amount																												€ 750	$ 801,000,000
Debt instrument, interest rate																												1.125%	1.125%
Loans Payable
Debt Instrument [Line Items]
Debt instrument, principal amount				$ 2,500,000,000																				$ 2,500,000,000
Long-term debt proceeds				2,480,000,000
Unamortized discount and deferred financing costs																								22,000,000
Debt instrument, repurchased amount					$ 570,000,000
Loans Payable \| 6.125% U.S. Dollar-denominated Notes due August 2018
Debt Instrument [Line Items]
Long-term debt repaid	$ 280,000,000
Debt instrument, interest rate	6.125%				6.125%
Debt instrument, repurchased amount					$ 42,600,000
Loans Payable \| 7.25% Pound Sterling-denominated Notes
Debt Instrument [Line Items]
Long-term debt repaid		£ 76	$ 99,000,000
Debt instrument, interest rate		7.25%	7.25%
Loans Payable \| 3.000% U.S. Dollar-denominated Notes due May 2020
Debt Instrument [Line Items]
Debt instrument, principal amount																								$ 750,000,000
Debt instrument, interest rate																								3.00%
Loans Payable \| 3.625% U.S. Dollar-denominated Notes due May 2023
Debt Instrument [Line Items]
Debt instrument, principal amount																								$ 750,000,000
Debt instrument, interest rate																								3.625%
Loans Payable \| 4.125% U.S. Dollar-denominated Notes due May 2028
Debt Instrument [Line Items]
Debt instrument, principal amount																								$ 700,000,000
Debt instrument, interest rate																								4.125%
Loans Payable \| 4.625% U.S. Dollar-denominated Notes due May 2048
Debt Instrument [Line Items]
Debt instrument, principal amount																								$ 300,000,000
Debt instrument, interest rate																								4.625%
Loans Payable \| 6.500% U.S. Dollar-denominated Notes due February 2040
Debt Instrument [Line Items]
Debt instrument, interest rate					650.00%
Debt instrument, repurchased amount					$ 241,000,000
Loans Payable \| 5.375% U.S. Dollar-denominated Notes due February 2020
Debt Instrument [Line Items]
Debt instrument, interest rate					5.375%
Debt instrument, repurchased amount					$ 97,600,000
Loans Payable \| 6.500% U.S. Dollar-denominated Notes due November 2031
Debt Instrument [Line Items]
Debt instrument, interest rate					6.50%
Debt instrument, repurchased amount					$ 75,800,000
Loans Payable \| 6.875% U.S. Dollar-denominated Notes due February 2038
Debt Instrument [Line Items]
Debt instrument, interest rate					6.875%
Debt instrument, repurchased amount					$ 72,100,000
Loans Payable \| 6.875% U.S. Dollar-denominated Notes due January 2039
Debt Instrument [Line Items]
Debt instrument, interest rate					6.875%
Debt instrument, repurchased amount					$ 29,300,000
Loans Payable \| 7.000% U.S. Dollar-denominated Notes due August 2037
Debt Instrument [Line Items]
Debt instrument, interest rate					7.00%
Debt instrument, repurchased amount					$ 11,700,000
Loans Payable \| 3.250% Canadian Dollar-denominated Notes due March 2025
Debt Instrument [Line Items]
Debt instrument, principal amount																									$ 600,000,000
Debt instrument, interest rate							3.25%																		3.25%
Unamortized discount and deferred financing costs							$ 4,000,000
Proceeds from issuance of debt, net of discounts and underwriting fees							$ 461,000,000	$ 595,000,000
Loans Payable \| 6.125% U.S. Dollar-denominated Notes due February 2018
Debt Instrument [Line Items]
Long-term debt repaid										$ 478,000,000
Debt instrument, interest rate										6.125%
Loans Payable \| 0.080% Swiss Franc-denominated Notes due January 2018
Debt Instrument [Line Items]
Long-term debt repaid											$ 260,000,000	SFr 250
Debt instrument, interest rate											0.08%	0.08%
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity									$ 1,500,000,000
Line of credit facility outstanding amount																				0
Line of credit, expiration period									364 days
Revolving credit facility expiration date									Feb. 27, 2019
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
Revolving credit facility expiration date																			Oct. 11, 2018				Oct. 11, 2021
Revolving credit facility debt covenant																				24,600,000,000
Total shareholders' equity, excluding accumulated other comprehensive earnings / (losses)																				36,300,000,000
International Subsidiaries
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity																				1,700,000,000	2,000,000,000.0		$ 2,000,000,000.0
Commercial paper
Debt Instrument [Line Items]
Short-term borrowings																				$ 3,054,000,000	3,410,000,000		3,410,000,000
Commercial paper \| Minimum
Debt Instrument [Line Items]
Commercial paper, maturity period																				2 days
Commercial paper \| Maximum
Debt Instrument [Line Items]
Commercial paper, maturity period																				109 days
Line of Credit
Debt Instrument [Line Items]
Short-term borrowings																				$ 138,000,000	$ 107,000,000		$ 107,000,000
Line of Credit \| Revolving Credit Facility \| 364-Day Senior Unsecured Credit Facility
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity						$ 2,000,000,000.0
Line of credit, expiration period						364 days
Borrowings under line of credit					$ 714,000,000
Repayment of line of credit				$ 714,000,000
Loss on early extinguishment of debt																				$ 140,000,000