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Property, Plant and Equipment-Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment-Net
Gross property plant and equipment	$ 15,839		$ 15,839		$ 15,408
Less: Accumulated depreciation and amortization	9,007		9,007		8,673
Net property, plant and equipment	6,832		6,832		6,735
Construction in progress expenditures incurred but not yet paid			164	$ 122	101	$ 68
Depreciation and amortization	215	$ 229	665	701
Land
Property, Plant and Equipment-Net
Gross property plant and equipment	109		109		114
Machinery and equipment
Property, Plant and Equipment-Net
Gross property plant and equipment	13,961		13,961		13,801
Changes in plant turnaround activity
Balance at the beginning of the period			363	352	352
Additions			183	120
Depreciation			(113)	(134)
Balance at the end of the period	433	$ 338	433	$ 338	363	$ 352
Buildings and improvements
Property, Plant and Equipment-Net
Gross property plant and equipment	1,044		1,044		1,011
Construction in progress
Property, Plant and Equipment-Net
Gross property plant and equipment	$ 725		$ 725		$ 482

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- Definition

Additions made to the plant turnaround costs during the period related to inspections, replacements and overhauls of plant machinery and equipment.

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Represents Capitalized plant turnaround costs. Scheduled inspections, replacements and overhauls of plant machinery and equipment are referred to as plant turnarounds.

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A roll forward is a reconciliation of a concept from the beginning of the period to the end of the period.

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The amount of expense recognized during the period that reflects the allocation of the cost of plant turnaround over the assets' useful lives.

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Future cash outflow to pay for construction in progress expenditures that have occurred.

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Amount of expense for allocation of cost of tangible and intangible assets over their useful lives directly used in production of good and rendering of service.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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