Share-Based Compensation Plans - Restricted Share Units Narrative (Details) - Restricted share units (RSUs) - USD ($) $ / shares in Units, $ 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]
Granted (in dollars per share)	$ 364	$ 300	$ 302
Fair value of RSUs vested during the period	$ 385	$ 332	$ 354
Unamortized deferred compensation	$ 544
Weighted average remaining amortization period (in years)	2 years 1 month 6 days
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years