Financial Instruments Debt Securities (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Debt Securities, Available-for-sale [Line Items]
Debt Securities, AFS, Amortized Cost, Maturity after year one to five years	$ 103
Gross Unrealized Gain (Loss)	(6)
Debt Securities, AFS, Fair Value, Maturity after year one to five years	97
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-Maturity, Amortized Cost, contractual maturity within One Year	$ 55