v3.26.1
DEBT AND EQUITY SECURITIES - Schedule of Available-for-Sale of Debt Securities (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost $ 797 $ 707  
Gross unrealized gains 1 6  
Gross unrealized losses (20) (3)  
Fair value 778 710  
Short-term investments 69 26  
Cash and cash equivalents 537 787 $ 846
U.S. government obligations      
Debt Securities, Available-for-Sale [Line Items]      
Short-term investments 7    
Corporate debt securities      
Debt Securities, Available-for-Sale [Line Items]      
Short-term investments 52 18  
Time deposits      
Debt Securities, Available-for-Sale [Line Items]      
Short-term investments 10 8  
Cash and cash equivalents 10 12  
Level Two—Significant Other Observable Inputs | U.S. government obligations      
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost 230 224  
Gross unrealized gains 0 2  
Gross unrealized losses (4) (2)  
Fair value 226 224  
Level Two—Significant Other Observable Inputs | U.S. government agencies      
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost 28 23  
Gross unrealized gains 0 0  
Gross unrealized losses 0 0  
Fair value 28 23  
Level Two—Significant Other Observable Inputs | Corporate debt securities      
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost 326 262  
Gross unrealized gains 1 4  
Gross unrealized losses (2) (1)  
Fair value 325 265  
Level Two—Significant Other Observable Inputs | Mortgage-backed securities      
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost 40 33  
Gross unrealized gains 0 0  
Gross unrealized losses (1) 0  
Fair value 39 33  
Level Two—Significant Other Observable Inputs | Asset-backed securities      
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost 34 35  
Gross unrealized gains 0 0  
Gross unrealized losses 0 0  
Fair value 34 35  
Level Two—Significant Other Observable Inputs | Municipal and provincial notes and bonds      
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost 4 3  
Gross unrealized gains 0 0  
Gross unrealized losses 0 0  
Fair value 4 3  
Level Two—Significant Other Observable Inputs | Time deposits      
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost 24 23  
Gross unrealized gains 0 0  
Gross unrealized losses 0 0  
Fair value 24 23  
Level Three—Significant Unobservable Inputs | Preferred equity      
Debt Securities, Available-for-Sale [Line Items]      
Amortized cost 111 104  
Gross unrealized gains 0 0  
Gross unrealized losses (13) 0  
Fair value $ 98 $ 104