Stock-Based Compensation - Narrative (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2026 USD ($)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Pre-tax stock-based compensation cost increase (decrease)	$ 58	$ 163
Unrecognized compensation cost related to non-vested awards	2,400	$ 2,400
Unrecognized compensation cost related to non-vested awards, weighted average period of recognition		2 years 2 months 12 days
Restricted Stock Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Pre-tax stock-based compensation cost increase (decrease)	79	$ 131
Performance Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Pre-tax stock-based compensation cost increase (decrease)	$ (23)	$ 24