Leases - Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating Lease Expense	$ 57	$ 60	$ 57
Short-term and Variable Lease Expense	205	174	90
Subtotal of Operating Lease Expense	262	234	147
Finance Lease Expense: Amortization of Assets and Interest on Lease Liabilities	24	19	18
Sublease Income	(2)	(2)	(3)
Total Lease Expense	$ 284	$ 251	$ 162