XML 14 R3.htm IDEA: XBRL DOCUMENT v3.24.2.u1
CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Statement of Comprehensive Income [Abstract]        
Net Income (Loss) Attributable to Merck & Co., Inc. $ 5,455 $ (5,975) $ 10,217 $ (3,154)
Other Comprehensive Loss Net of Taxes:        
Net unrealized gain on derivatives, net of reclassifications 67 145 197 12
Benefit plan net (loss) gain and prior service (cost) credit, net of amortization (10) (25) (15) (75)
Cumulative translation adjustment (144) (137) (382) (69)
Other comprehensive income (loss), net of taxes (87) (17) (200) (132)
Comprehensive Income (Loss) Attributable to Merck & Co., Inc. $ 5,368 $ (5,992) $ 10,017 $ (3,286)