Fair Value Measures and Disclosures (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | $ 1,573 | $ 1,544 |
Long-term marketable securities | 314 | 397 |
Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 20 | 3 |
Short-term marketable securities | 283 | 306 |
Corporate bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 194 | 205 |
Long-term marketable securities | 144 | 145 |
U.S. government agency securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 170 | 76 |
Long-term marketable securities | 46 | 44 |
U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 10 | |
Short-term marketable securities | 926 | 957 |
Long-term marketable securities | 124 | 208 |
Fair Value, Recurring | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets | 2,742 | 2,830 |
Fair Value, Recurring | Money market funds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 825 | 886 |
Fair Value, Recurring | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 20 | |
Fair Value, Recurring | U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 10 | |
Fair Value, Recurring | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | | 3 |
Short-term marketable securities | 283 | 306 |
Fair Value, Recurring | Corporate bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 194 | 205 |
Long-term marketable securities | 144 | 145 |
Fair Value, Recurring | U.S. government agency securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 170 | 76 |
Long-term marketable securities | 46 | 44 |
Fair Value, Recurring | U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 926 | 957 |
Long-term marketable securities | 124 | 208 |
Level 1 | Fair Value, Recurring | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets | 825 | 886 |
Level 1 | Fair Value, Recurring | Money market funds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 825 | 886 |
Level 1 | Fair Value, Recurring | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 0 | |
Level 1 | Fair Value, Recurring | U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 0 | |
Level 1 | Fair Value, Recurring | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | | 0 |
Short-term marketable securities | 0 | 0 |
Level 1 | Fair Value, Recurring | Corporate bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 0 | 0 |
Long-term marketable securities | 0 | 0 |
Level 1 | Fair Value, Recurring | U.S. government agency securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 0 | 0 |
Long-term marketable securities | 0 | 0 |
Level 1 | Fair Value, Recurring | U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 0 | 0 |
Long-term marketable securities | 0 | 0 |
Level 2 | Fair Value, Recurring | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets | 1,917 | 1,944 |
Level 2 | Fair Value, Recurring | Money market funds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 0 | 0 |
Level 2 | Fair Value, Recurring | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 20 | |
Level 2 | Fair Value, Recurring | U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 10 | |
Level 2 | Fair Value, Recurring | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | | 3 |
Short-term marketable securities | 283 | 306 |
Level 2 | Fair Value, Recurring | Corporate bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 194 | 205 |
Long-term marketable securities | 144 | 145 |
Level 2 | Fair Value, Recurring | U.S. government agency securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 170 | 76 |
Long-term marketable securities | 46 | 44 |
Level 2 | Fair Value, Recurring | U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 926 | 957 |
Long-term marketable securities | 124 | 208 |
Level 3 | Fair Value, Recurring | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Assets | 0 | 0 |
Level 3 | Fair Value, Recurring | Money market funds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 0 | 0 |
Level 3 | Fair Value, Recurring | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 0 | |
Level 3 | Fair Value, Recurring | U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | 0 | |
Level 3 | Fair Value, Recurring | Commercial paper | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Cash equivalents | | 0 |
Short-term marketable securities | 0 | 0 |
Level 3 | Fair Value, Recurring | Corporate bonds | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 0 | 0 |
Long-term marketable securities | 0 | 0 |
Level 3 | Fair Value, Recurring | U.S. government agency securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 0 | 0 |
Long-term marketable securities | 0 | 0 |
Level 3 | Fair Value, Recurring | U.S. Treasury securities | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Short-term marketable securities | 0 | 0 |
Long-term marketable securities | $ 0 | $ 0 |