Segment Information (Details) - Reconciliation of Segment EBITDA to Net Income - USD ($) $ in Millions		3 Months Ended			6 Months Ended	9 Months Ended
	Jul. 01, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2020
Segment Reporting Information [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 3,054	$ (102)		$ (43)	$ 2,894	$ (203)
Income tax expense (benefit)	191	17		(5)	201	8
Interest expense, net	0	25		28	89	76
Depreciation and amortization (1)	0	47		48	43	143
EBITDA	3,126	63	$ 27	27	3,093	103
Non-cash asset impairments				0	0	16
Asset impairments	0	0		0	0	16
Business realignment costs (2)	0	19		12	14	57
Transaction costs (3)	0	1		5	26	4
Realized and unrealized foreign currency (gains) losses	0	(3)		9	(7)	2
Reorganization Items, net of noncash inventory step up	(3,099)				(2,943)
Other Noncash Expense	0	6		1	9	29
Other (7)	18	5		5	36	9
Total adjustments	(3,108)	28	59	59	(2,892)	117
Segment EBITDA	18	91	86	86	201	220
accelerated depreciation						(2)
Net Income (Loss) Attributable to Parent	3,054	(102)		(43)	2,895	(203)
Net Income (Loss) Attributable to Noncontrolling Interest	0	0		0	1	0
Reorganization Items	3,126	0		0	2,970	0
Non-cash impact of inventory step-up	(27)	0		27	(27)	0
(Loss) income from discontinued operations, net of taxes	119	(76)		1	135	(79)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	2,935	(26)	$ (44)	(44)	2,760	(124)
Adhesives [Member]
Segment Reporting Information [Line Items]
Segment EBITDA	18	58		59	135	156
Coatings and Composites [Member]
Segment Reporting Information [Line Items]
Segment EBITDA	0	50		44	96	115
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Segment EBITDA	$ 0	$ (17)		$ (17)	$ (30)	$ (51)