Other (Income) Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Income and Expenses [Abstract]
Interest income	$ (75)	$ (81)	$ (164)	$ (165)
Interest expense	233	194	442	379
Exchange losses	27	71	128	77
Loss (income) from investments in equity securities	(58)	(153)	(32)	(178)
Net periodic defined benefit plan (credit) cost other than service cost	(140)	(130)	(281)	(265)
Other, net	153	51	234	(188)
Other (income) expense, net	$ 140	$ (48)	$ 327	$ (340)

Other nonoperating income and expense items not separately disclosed.

No definition available.

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Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits.

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Amount of income (expense) related to nonoperating activities, classified as other.

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