v3.25.4
Debt - Schedule of Long-Term Credit Facilities (Detail)
12 Months Ended
Dec. 31, 2025
USD ($)
Debt Instrument [Line Items]  
Facility Capacity $ 23,950,000,000
Unused Capacity 13,657,000,000
Principal Amount Outstanding 4,652,000,000
Verizon revolving credit facility  
Debt Instrument [Line Items]  
Facility Capacity 12,000,000,000
Unused Capacity 11,977,000,000
Principal Amount Outstanding 0
Amount drawn from credit facilities 0
Various export credit facilities  
Debt Instrument [Line Items]  
Facility Capacity 11,950,000,000
Unused Capacity 1,680,000,000
Principal Amount Outstanding 4,652,000,000
Amount drawn from credit facilities $ 270,000,000