Aurora Innovation, Inc. Quarterly report pursuant to Section 13 or 15(d)

Cash, Cash Equivalents and Investments - Cash, Cash Equivalents, Short-term Investments and Long-term Investments Measured at Fair Value on Recurring Basis (Details)

Cash, Cash Equivalents and Investments - Cash, Cash Equivalents, Short-term Investments and Long-term Investments Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total cash and cash equivalents	$ 454	$ 501
Total short-term and long-term investments	743	847
U.S. Treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total short-term and long-term investments	647	769
U.S. Treasury securities \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total short-term and long-term investments	647	769
Commercial paper
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total short-term and long-term investments	61	54
Commercial paper \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total short-term and long-term investments	61	54
Corporate bonds and notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total short-term and long-term investments	35	24
Corporate bonds and notes \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total short-term and long-term investments	35	24
Money market funds \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total cash and cash equivalents	454	220
U.S. Treasury securities \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total cash and cash equivalents	0	251
Commercial paper \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total cash and cash equivalents	$ 0	$ 30