Long-term Debt and Finance Leases - Bilateral Letter of Credit Facilities (Details) - Bilateral Letter of Credit Facilities - Letter of Credit - Secured Debt - USD ($) $ in Millions	1 Months Ended
	Feb. 24, 2026	Jan. 31, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Revolving credit facility			$ 850
Letter of credit			$ 637
Subsequent Event
Debt Instrument [Line Items]
Letter of credit		$ 1,000
Increase in existing borrowing commitments	$ 90	$ 410