v3.25.4
Financial Instruments - Schedule of Balances of Cash Equivalents and Investments (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Cash equivalents:    
Cash and cash equivalents $ 768 $ 1,082
Short-term investments:    
Amortized Cost 525  
Estimated Fair Market Value 527  
Mortgage origination-related:    
Mortgage loans held for sale 386 159
Restricted Cash 5 3
Total assets measured at fair value on a recurring basis, Amortized cost 1,298 1,863
Total assets measured at fair value on a recurring basis, Fair Value 1,694 2,025
Liabilities    
Contingent consideration - accrued expenses and other current liabilities 33 33
Contingent consideration - other long-term liabilities 31 58
Liabilities measured at fair value 65 91
U.S. government treasury securities    
Short-term investments:    
Amortized Cost 369 594
Estimated Fair Market Value 370 591
Corporate bonds    
Short-term investments:    
Amortized Cost 149 175
Estimated Fair Market Value 150 176
U.S. government agency securities    
Short-term investments:    
Amortized Cost 7 7
Estimated Fair Market Value 7 7
Commercial paper    
Short-term investments:    
Amortized Cost 0 2
Estimated Fair Market Value 0 2
IRLCs - prepaid expenses and other current assets | Not Designated as Hedging Instrument    
Mortgage origination-related:    
Other current assets 8 4
Forward contracts - prepaid expenses and other current assets | Not Designated as Hedging Instrument    
Mortgage origination-related:    
Other current assets 0 1
Liabilities    
Forward contracts - accrued expenses and other current liabilities 1 0
Cash    
Cash equivalents:    
Cash and cash equivalents 19 13
Estimated Fair Market Value 19 13
Money market funds    
Cash equivalents:    
Cash and cash equivalents 659 993
Estimated Fair Market Value 659 993
U.S. government treasury securities    
Cash equivalents:    
Cash and cash equivalents 90 75
Estimated Fair Market Value 90 75
Commercial paper    
Cash equivalents:    
Cash and cash equivalents 0 1
Estimated Fair Market Value $ 0 $ 1