Long-Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Jan. 08, 2026	Dec. 31, 2024
Debt Instrument
Medium-term notes, maximum remaining maturity	5 years
Face amount of medium-term notes excluded from current maturities	$ 1,750
Medium-term notes
Debt Instrument
Long-term debt issued	8,670
Long-term debt issued at fixed interest rates	5,750
Long-term debt issued at floating interest rates	2,920
Long term debt, gross	$ 26,424		$ 24,940
Medium-term notes | Subsequent Event
Debt Instrument
Long term debt, gross		$ 1,750
Medium Term Note, 2028 | Subsequent Event
Debt Instrument
Long term debt, gross		1,250
Medium Term Note, 2031 | Subsequent Event
Debt Instrument
Long term debt, gross		$ 500