Derivative Instruments and Hedging Activities - Balance sheet location (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Fair value of derivatives
Assets	$ 38	$ 24
Liabilities	41	28
Designated Hedging Instruments
Fair value of derivatives
Assets	30	17
Liabilities	35	24
Net Assets/(Liabilities)	(5)	(7)
Designated Hedging Instruments \| Accounts receivable, net
Fair value of derivatives
Assets	28	17
Designated Hedging Instruments \| Other non-current assets
Fair value of derivatives
Assets	2	0
Designated Hedging Instruments \| Accounts payable
Fair value of derivatives
Liabilities	32	24
Designated Hedging Instruments \| Other non-current liabilities
Fair value of derivatives
Liabilities	3	0
Designated Hedging Instruments \| Commodity Contracts
Fair value of derivatives
Assets	18	4
Liabilities	24	13
Net Assets/(Liabilities)	(6)	(9)
Designated Hedging Instruments \| Commodity Contracts \| Accounts receivable, net
Fair value of derivatives
Assets	17	4
Designated Hedging Instruments \| Commodity Contracts \| Other non-current assets
Fair value of derivatives
Assets	1	0
Designated Hedging Instruments \| Commodity Contracts \| Accounts payable
Fair value of derivatives
Liabilities	21	13
Designated Hedging Instruments \| Commodity Contracts \| Other non-current liabilities
Fair value of derivatives
Liabilities	3	0
Designated Hedging Instruments \| Foreign Currency Contracts
Fair value of derivatives
Assets	12	13
Liabilities	11	11
Net Assets/(Liabilities)	1	2
Designated Hedging Instruments \| Foreign Currency Contracts \| Accounts receivable, net
Fair value of derivatives
Assets	11	13
Designated Hedging Instruments \| Foreign Currency Contracts \| Other non-current assets
Fair value of derivatives
Assets	1	0
Designated Hedging Instruments \| Foreign Currency Contracts \| Accounts payable
Fair value of derivatives
Liabilities	11	11
Designated Hedging Instruments \| Foreign Currency Contracts \| Other non-current liabilities
Fair value of derivatives
Liabilities	0	0
Non-Designated Hedging Instruments
Fair value of derivatives
Assets	8	7
Liabilities	6	4
Net Assets/(Liabilities)	2	3
Non-Designated Hedging Instruments \| Accounts receivable, net
Fair value of derivatives
Assets	8	6
Non-Designated Hedging Instruments \| Other non-current assets
Fair value of derivatives
Assets	0	1
Non-Designated Hedging Instruments \| Accounts payable
Fair value of derivatives
Liabilities	6	4
Non-Designated Hedging Instruments \| Other non-current liabilities
Fair value of derivatives
Liabilities	0	0
Non-Designated Hedging Instruments \| Commodity Contracts
Fair value of derivatives
Assets	1	1
Liabilities	1	1
Net Assets/(Liabilities)	0	0
Non-Designated Hedging Instruments \| Commodity Contracts \| Accounts receivable, net
Fair value of derivatives
Assets	1	1
Non-Designated Hedging Instruments \| Commodity Contracts \| Other non-current assets
Fair value of derivatives
Assets	0	0
Non-Designated Hedging Instruments \| Commodity Contracts \| Accounts payable
Fair value of derivatives
Liabilities	1	1
Non-Designated Hedging Instruments \| Commodity Contracts \| Other non-current liabilities
Fair value of derivatives
Liabilities	0	0
Non-Designated Hedging Instruments \| Foreign Currency Contracts
Fair value of derivatives
Assets	7	6
Liabilities	5	3
Net Assets/(Liabilities)	2	3
Non-Designated Hedging Instruments \| Foreign Currency Contracts \| Accounts receivable, net
Fair value of derivatives
Assets	7	5
Non-Designated Hedging Instruments \| Foreign Currency Contracts \| Other non-current assets
Fair value of derivatives
Assets	0	1
Non-Designated Hedging Instruments \| Foreign Currency Contracts \| Accounts payable
Fair value of derivatives
Liabilities	5	3
Non-Designated Hedging Instruments \| Foreign Currency Contracts \| Other non-current liabilities
Fair value of derivatives
Liabilities	$ 0	$ 0