Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pay vs Performance Disclosure
Net (Loss) Income Attributable to Merck & Co., Inc.	$ (5,975)	$ 3,944	$ (3,154)	$ 8,254

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details