CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 13, 2019	Dec. 31, 2020	Dec. 31, 2018
Statement of Cash Flows [Abstract]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 800		$ 1,285	$ 602
Cash Flows from Operating Activities:
Net Income (Loss)	(24)	$ 3,684	(1,899)	(2,791)
Adjustments to Reconcile Net Income (Loss) to Net Cash Provided by (Used in) Operating Activities:
Depreciation and Amortization	34	447	503	556
Debtor Reorganization Items, Gain on Settlement of LSTC	0	(4,297)	0	0
Reorganization Items	0	(1,161)	0	0
Long-lived Asset Impairments	0	20	814	151
Goodwill Impairment	0	730	239	1,917
Inventory Charges	0	159	210	80
Restructuring Costs and Asset Impairment Charges	0	145	60	62
Share-based compensation	0	46	0	47
Gain (Loss) on Disposition of Other Assets	0	112	0	0
Deferred Income Tax Provision (Benefit)	0	25	(5)	(79)
Change in Operating Assets and Liabilities, Net:
Accounts Receivable	36	(135)	378	(70)
Inventories	18	(215)	64	86
Accounts Payable	(79)	(72)	(250)	(90)
Other Assets and Liabilities, Net	(76)	11	(96)	111
Net Cash Provided by (Used in) Operating Activities	61	(747)	210	(242)
Cash Flows From Investing Activities:
Capital Expenditures for Property, Plant and Equipment	(20)	(250)	(154)	(186)
Increase (Decrease) in Assets Held-for-sale	0	0	0	(31)
Acquisitions of Businesses, Net of Cash Acquired	0	0	0	4
Acquisition of Intangible Assets	(1)	(13)	(4)	(28)
Proceeds from Divestiture of Businesses and Investments	7	328	11	257
Proceeds from Sale of Property, Plant, and Equipment	0	84	22	106
Payments for (Proceeds from) Other Investing Activities	0	0	50	0
Net Cash Provided by (Used in) Investing Activities	(14)	149	(75)	122
Cash Flows From Financing Activities:
Borrowings of Long-term Debt	0	1,600	453	586
ProceedsFromDebtorInPossessionFinancingFacility	0	1,529	0	0
Proceeds from (Repayments of) Other Long-term Debt	0	1,529	0	0
Repayments of Long-term Debt	(1)	(318)	(9)	(502)
Repayments of Short-term Debt, Net	(1)	(347)	(27)	158
Debtor in Possession Financing Payments and Payments on Backstop Agreement	0	(137)	0	0
Payments for Deferred Consideration Greater than One Year	0	0	24	0
Other Financing Activities, Net	0	(49)	(45)	(74)
Net Cash Provided by (Used in) Financing Activities, Total	(2)	749	348	168
Effect of Exchange Rate Changes on Cash and Cash Equivalents	1	1	2	(59)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	46	152	485	(11)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period			618
Cash, Cash Equivalents and Restricted Cash at End of Period	618		1,118
Supplemental Cash Flow Information [Abstract]
Interest Paid, Excluding Capitalized Interest, Operating Activities	0	272	232	584
Income Taxes Paid, Net	$ 2	$ 89	$ 79	$ 99