Derivative Instruments - Balance Sheet Classification (Details) € in Millions, $ / BTU in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024 EUR (€) $ / BTU	Dec. 31, 2023 USD ($) $ / BTU	Dec. 31, 2024 USD ($)	Dec. 31, 2023 EUR (€)	Dec. 31, 2023 USD ($)
Derivatives, Fair Value
Payments for derivative instruments, financing activities		$ 40
Total asset derivatives			$ 17		$ 13
Total liability derivatives			114		190
Current derivative asset			$ 17		$ 13
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Prepaid Expense and Other Assets, Current		Prepaid Expense and Other Assets, Current	Prepaid Expense and Other Assets, Current	Prepaid Expense and Other Assets, Current
Current derivative liability			$ 12		$ 17
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current		Other Liabilities, Current	Other Liabilities, Current	Other Liabilities, Current
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent		Other Assets, Noncurrent	Other Assets, Noncurrent	Other Assets, Noncurrent
Noncurrent derivative liability			$ 102		$ 173
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent		Other Liabilities, Noncurrent	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Derivatives designated as hedging instruments
Derivatives, Fair Value
Total asset derivatives			$ 15		$ 8
Total liability derivatives			104		181
Derivatives designated as hedging instruments | Commodity forward contracts and collars
Derivatives, Fair Value
British Thermal Units ("BTUs") | $ / BTU	28	38
Total liability derivatives			6		14
Derivatives designated as hedging instruments | Interest rate swaps - fair value hedges
Derivatives, Fair Value
Notional amount | €				€ 725
Derivatives not designated as hedging instruments | Foreign exchange contracts
Derivatives, Fair Value
Notional amount			680		407
Total asset derivatives			2		5
Total liability derivatives			10		9
Fair Value Hedges | Derivatives designated as hedging instruments | Foreign exchange risk
Derivatives, Fair Value
Notional amount			816		833
Total asset derivatives			8		4
Total liability derivatives			69		111
Net investment hedges | Derivatives designated as hedging instruments
Derivatives, Fair Value
Notional amount | €	€ 483			€ 483
Total asset derivatives			7		4
Total liability derivatives			$ 29		$ 56