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Goodwill - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2022
Goodwill [Line Items]
Goodwill impairment	$ 0	$ 700	$ 700	$ 2,045	$ 0
Tevas North America Europe Medis and Tevas API [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount		10.00%
Tevas International Market [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount	6.00%	3.00%	6.00%
Tevas International Market [Member] | Measurement Input Terminal Growth Rate [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount	1.79%	1.56%	1.79%
Tevas International Market [Member] | Measurement Input, Discount Rate [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount	12.23%	9.96%	12.23%
Tevas Europe Reporting Unit [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount	4.00%	1.00%	4.00%			9.00%
Maximum [Member] | Tevas International Market [Member] | Measurement Input Terminal Growth Rate [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount	1.54%	1.31%	1.54%
Maximum [Member] | Tevas International Market [Member] | Measurement Input, Discount Rate [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount	12.48%	10.21%	12.48%
Minimum [Member] | Tevas International Market [Member] | Measurement Input Terminal Growth Rate [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount	0.25%	0.25%	0.25%
Minimum [Member] | Tevas International Market [Member] | Measurement Input, Discount Rate [Member]
Goodwill [Line Items]
Reporting unit percentage of fair value in excess of carrying amount	0.25%	0.25%	0.25%

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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