Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Name:	us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Subsequent Events (Details) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
Subsequent Events (Details) - USD ($) $ in Millions	Oct. 09, 2020	Dec. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Subsequent Event [Line Items]
Income Tax Expense (Benefit)			$ 30	$ 53	$ 130	$ 127
Polyplastics Co., Ltd. [Member] \| Engineered Materials \| Subsequent Event
Subsequent Event [Line Items]
Equity Method Investment, Ownership Percentage	45.00%
Expected Proceeds from Sale of Equity Method Investments	$ 1,600
Income Tax Expense (Benefit)		$ 295
Gain on Sale of Investments	$ 1,400