Share-Based Compensation - Schedule of Share-Based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	$ 2,363	$ 350	$ 3,833	$ 1,044
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfRevenue
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	128	71	321	175
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfRevenue \| Cursor and Mesh Optical
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	6		6
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	1,416	167	2,147	435
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense \| Cursor and Mesh Optical
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	1,022		1,022
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	819	$ 112	1,365	$ 434
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense \| Cursor and Mesh Optical
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	$ 189		$ 189