Reportable Segments - Schedule of Reconciliation of Net Income of Reportable Segments to Consolidated Net Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Gain (loss) reclassified from accumulated OCI into income	$ 506	$ 581	$ 1,316
Translated earnings contract gain, net	83	161	351
Research, development and engineering expenses	1,089	1,076	1,047
Amortization of intangibles	(121)	(122)	(123)
Interest expense, net	(329)	(329)	(292)
Income tax benefit	(221)	(168)	(411)
Severance charges	(45)	(187)	(70)
Net income	592	648	1,386
Operating Segments
Segment Reporting Information [Line Items]
Gain (loss) reclassified from accumulated OCI into income	2,244	1,973	2,254
Impact of constant currency reporting	(1,309)	(992)	(616)
Research, development and engineering expenses	927	863	874
Income tax benefit	(616)	(541)	(615)
Operating Segments | Reportable Segments
Segment Reporting Information [Line Items]
Gain (loss) reclassified from accumulated OCI into income	2,299	1,958	2,215
Operating Segments | Hemlock and Emerging Growth Businesses
Segment Reporting Information [Line Items]
Gain (loss) reclassified from accumulated OCI into income	(55)	15	39
Research, development and engineering expenses	168	162	163
Income tax benefit	2	(22)	(24)
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment
Segment Reporting Information [Line Items]
Impact of constant currency reporting	(989)	(744)	(480)
Translated earnings contract gain, net	83	161	348
Translation gain on Japanese yen-denominated debt, net	104	100	191
Litigation, regulatory and other legal matters	(12)	(61)	(100)
Research, development and engineering expenses	(151)	(162)	(163)
Amortization of intangibles	(121)	(122)	(123)
Interest expense, net	(248)	(244)	(237)
Income tax benefit	395	373	204
Pension mark-to-market	(3)	(15)	(11)
Severance charges	(45)	(187)	(70)
Capacity optimization and other charges and credits	(362)	(284)	(344)
(Loss) gain on sale of business	(31)		53
Other corporate items	(272)	(140)	(136)
Net income	$ 592	$ 648	$ 1,386