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Supplemental Financial Information - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Condensed Cash Flow Statements, Captions [Line Items]
Net earnings allocated to common shares	$ 1,800	$ 1,300	$ 3,100	$ 2,500
Payment of cash taxes			945	747
Equity method investments carrying value	158		158
Established Pharmaceuticals
Condensed Cash Flow Statements, Captions [Line Items]
Loss on disposal		143
Net assets		28		28
Foreign currency translation adjustment		$ 116		116
Other
Condensed Cash Flow Statements, Captions [Line Items]
Equity investment without readily determinable fair value	117		117
St Jude Medical | Equity securities
Condensed Cash Flow Statements, Captions [Line Items]
Securities in mutual funds held in a rabbi trust	$ 315		315
Defined Benefit Plans
Condensed Cash Flow Statements, Captions [Line Items]
Pension contributions			$ 246	$ 289

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