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Provisions and other current liabilities (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring provisions movements [roll forward]
Cash payments	$ (22,261)	$ (19,838)	$ (19,294)
Restructuring provision
Restructuring provisions movements [roll forward]
Provision at beginning of period	345	459	438
Additions	1,368	328	354
Cash payments	(468)	(344)	(268)
Releases	(42)	(54)	(87)
Transfers	(53)	(27)
Currency translation effects	(19)	(17)	22
Provision at end of period	$ 1,131	$ 345	$ 459

X

- Definition

The amount of additional other provisions made. [Refer: Other provisions]

+ References

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- Definition

The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions]

+ References

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- Definition

The increase (decrease) in other provisions resulting from transfers and changes that the entity does not separately disclose in the same statement or note. [Refer: Other provisions]

+ References

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- Definition

The amount of provisions other than provisions for employee benefits. [Refer: Provisions]

+ References

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- Definition

The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions]

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- Definition

The amount reversed for unused other provisions. [Refer: Other provisions]

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