Equity - Stock-Based Compensation (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	144
Retirement-eligible employees' age	55 years
Minimum number of years of services	10 years
Pre-tax compensation expense	$ 955	$ 911	$ 747
Tax benefit	(170)	(159)	(136)
After-tax compensation expense	785	752	611
Excess tax benefits realized from stock-based compensation	58	84	90
Cash Settled, Post-Closing Expense for Employee Incentive Awards	95	510
Cost of products sold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	52	55	46
Cash Settled, Post-Closing Expense for Employee Incentive Awards	0	36
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	386	341	278
Cash Settled, Post-Closing Expense for Employee Incentive Awards	28	184
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	517	515	$ 423
Cash Settled, Post-Closing Expense for Employee Incentive Awards	$ 67	$ 290

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