Other (Income) Expense, Net - Schedule of Other (Income) Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Sep. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Component of Other Income / Expense of Nonoperating [Line Items]
Interest income		$ (15)	$ (9)	$ (22)	$ (20)
Interest expense		240	202	483	401
Exchange losses		86	114	124	155
Loss (income) from investments in equity securities, net		284	(280)	991	(854)
Net periodic defined benefit plan (credit) cost other than service cost		(27)	(110)	(148)	(199)
Other, net		(130)	(20)	(280)	(41)
Other (income) expense, net		438	(103)	1,148	(558)
Unrealized net (gains) losses		$ (25)	$ 18	$ 194	$ 199
Forecast \| Subsequent Event
Component of Other Income / Expense of Nonoperating [Line Items]
Unrealized net (gains) losses	$ 135

[Line Items] for Component of Other Income / Expense of Nonoperating [Table]

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Other nonoperating income and expense items not separately disclosed.

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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 of unrealized 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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