v3.26.3
Fair Value Measurements (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Assets:    
U.S. government securities - held to maturity $ 374 $ 256
U.S. government securities - available for sale 752 0
Loan receivable 339 351
Derivative instruments 189 255
Total 3,334 3,466
Liabilities:    
Derivative instruments 148 229
Mortgage and loans payable 19 706
Senior notes 20,858 17,297
Total 21,025 18,232
Money market funds    
Assets:    
Cash and cash equivalents 586 1,333
Time deposits    
Assets:    
Cash and cash equivalents 1,094 1,271
Level 1    
Assets:    
U.S. government securities - held to maturity 0 0
U.S. government securities - available for sale 199 0
Loan receivable 0 0
Derivative instruments 0 0
Total 785 1,333
Liabilities:    
Derivative instruments 0 0
Mortgage and loans payable 0 0
Senior notes 20,459 16,847
Total 20,459 16,847
Level 1 | Money market funds    
Assets:    
Cash and cash equivalents 586 1,333
Level 1 | Time deposits    
Assets:    
Cash and cash equivalents 0 0
Level 2    
Assets:    
U.S. government securities - held to maturity 374 256
U.S. government securities - available for sale 553 0
Loan receivable 0 0
Derivative instruments 189 255
Total 2,210 1,782
Liabilities:    
Derivative instruments 148 229
Mortgage and loans payable 19 706
Senior notes 399 450
Total 566 1,385
Level 2 | Money market funds    
Assets:    
Cash and cash equivalents 0 0
Level 2 | Time deposits    
Assets:    
Cash and cash equivalents 1,094 1,271
Level 3    
Assets:    
U.S. government securities - held to maturity 0 0
U.S. government securities - available for sale 0 0
Loan receivable 339 351
Derivative instruments 0 0
Total 339 351
Liabilities:    
Derivative instruments 0 0
Mortgage and loans payable 0 0
Senior notes 0 0
Total 0 0
Level 3 | Money market funds    
Assets:    
Cash and cash equivalents 0 0
Level 3 | Time deposits    
Assets:    
Cash and cash equivalents $ 0 $ 0