Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Accounting Policies - Employee Separation and Restructuring Costs (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Employee separation costs		$ 15
Research and development
Restructuring Cost and Reserve [Line Items]
Employee separation costs		48
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Employee separation costs		58
General and administrative
Restructuring Cost and Reserve [Line Items]
Employee separation costs		93
Employee Severance
Restructuring Cost and Reserve [Line Items]
Employee separation costs	$ 33	214
Stock-Based Compensation
Restructuring Cost and Reserve [Line Items]
Employee separation costs		127
Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 14	$ 53