v3.26.1
Changes in Other Comprehensive Income (AOCI Rollforward with Reclassification) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]        
Beginning Stockholders' Equity     $ 24,233  
Other comprehensive income (loss) $ 98 $ (691) 312 $ (991)
Ending Stockholders' Equity 24,930 22,418 24,930 22,418
Accumulated other comprehensive income (loss), net of tax        
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]        
Beginning Stockholders' Equity (399) (28) (610) 275
Other comprehensive income (loss) before reclassifications 97 (671) 309 (938)
(Income) loss amounts reclassified from accumulated other comprehensive income (3) (23) (3) (58)
Other comprehensive income (loss) 94 (694) 305 (996)
Ending Stockholders' Equity (304) (722) (304) (722)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]        
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]        
Beginning Stockholders' Equity (428) (80) (561) 136
Other comprehensive income (loss) before reclassifications 85 (474) 220 (686)
(Income) loss amounts reclassified from accumulated other comprehensive income (6) (7) (8) (11)
Other comprehensive income (loss) 80 (480) 212 (696)
Ending Stockholders' Equity (349) (560) (349) (560)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]        
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]        
Beginning Stockholders' Equity 31 69 (48) 155
Other comprehensive income (loss) before reclassifications 12 (198) 88 (252)
(Income) loss amounts reclassified from accumulated other comprehensive income 3 (16) 5 (47)
Other comprehensive income (loss) 15 (214) 93 (300)
Ending Stockholders' Equity 46 (145) 46 (145)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]        
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]        
Beginning Stockholders' Equity (1) (17) (2) (16)
Other comprehensive income (loss) before reclassifications 0 0 1 0
(Income) loss amounts reclassified from accumulated other comprehensive income 0 0 0 0
Other comprehensive income (loss) 0 0 0 0
Ending Stockholders' Equity $ (1) $ (17) $ (1) $ (17)