Changes in Other Comprehensive Income (AOCI Rollforward with Reclassification) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]
Beginning Stockholders' Equity			$ 21,770
Other comprehensive income (loss)	$ (691)	$ 30	(991)	$ 108
Ending Stockholders' Equity	22,418	20,371	22,418	20,371
Accumulated other comprehensive income (loss), net of tax
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]
Beginning Stockholders' Equity	(28)	132	275	49
Other comprehensive income (loss) before reclassifications	(671)	75	(938)	199
(Income) loss amounts reclassified from accumulated other comprehensive income	(23)	(44)	(58)	(84)
Other comprehensive income (loss)	(694)	31	(996)	114
Ending Stockholders' Equity	(722)	164	(722)	164
Foreign Currency Translation Adjustment
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]
Beginning Stockholders' Equity	(80)	(34)	136	(96)
Other comprehensive income (loss) before reclassifications	(474)	50	(686)	115
(Income) loss amounts reclassified from accumulated other comprehensive income	(7)	(3)	(11)	(6)
Other comprehensive income (loss)	(480)	47	(696)	108
Ending Stockholders' Equity	(560)	13	(560)	13
Net Change in Derivative Financial Instruments
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]
Beginning Stockholders' Equity	69	175	155	154
Other comprehensive income (loss) before reclassifications	(198)	24	(252)	84
(Income) loss amounts reclassified from accumulated other comprehensive income	(16)	(40)	(47)	(78)
Other comprehensive income (loss)	(214)	(16)	(300)	6
Ending Stockholders' Equity	(145)	159	(145)	159
Net Change in Defined Benefit Pensions and Other Items
AOCI attributable to Boston Scientific common stockholders, Net of Tax [Roll Forward]
Beginning Stockholders' Equity	(17)	(8)	(16)	(8)
Other comprehensive income (loss) before reclassifications	0	0	0	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	$ (17)	$ (8)	$ (17)	$ (8)