v3.26.1
Financial Instruments - Schedule of Balances of Cash Equivalents and Investments (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Cash equivalents:    
Amortized Cost $ 572 $ 768
Short-term investments:    
Amortized Cost 110  
Estimated Fair Market Value 110  
Mortgage origination-related:    
Mortgage loans held for sale 494 386
Restricted cash 6 5
Total assets measured at fair value on a recurring basis, Amortized cost 688 1,298
Total assets measured at fair value on a recurring basis, Estimated fair market value 1,198 1,694
Liabilities    
Contingent consideration - accrued expenses and other current liabilities 32 33
Contingent consideration - other long-term liabilities 0 31
Liabilities measured at fair value 34 65
Corporate bonds    
Short-term investments:    
Amortized Cost 73 149
Estimated Fair Market Value 73 150
U.S. government treasury securities    
Short-term investments:    
Amortized Cost 36 369
Estimated Fair Market Value 36 370
Commercial paper    
Short-term investments:    
Amortized Cost 1 0
Estimated Fair Market Value 1 0
U.S. government agency securities    
Short-term investments:    
Amortized Cost 0 7
Estimated Fair Market Value 0 7
IRLCs - prepaid expenses and other current assets    
Mortgage origination-related:    
IRLCs - prepaid expenses and other current assets 16 8
Forward contracts - accrued expenses and other current liabilities    
Liabilities    
Forward contracts - accrued expenses and other current liabilities 2 1
Cash    
Cash equivalents:    
Amortized Cost 46 19
Estimated Fair Market Value 46 19
Money market funds    
Cash equivalents:    
Amortized Cost 526 659
Estimated Fair Market Value 526 659
U.S. government treasury securities    
Cash equivalents:    
Amortized Cost 0 90
Estimated Fair Market Value $ 0 $ 90