Effective Income Tax Rate Reconciliation, Nondeductible Expense, Postretirement Expenses, Amount

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- Definition

Effective rate reconciliation resulting from the measurement period adjustments due to the Tax Act of 2017.

+ References

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- Definition

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
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-Section 50
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2020	Mar. 31, 2020	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Effective income tax rate, continuing operations (in percent)				50.50%	29.20%
Tax benefits related to other one-time adjustments	$ (51)	$ (44)			$ 13
Nondeductible expenses, restructuring expenses and merger, acquisition and divestiture expenses and asset impairment charges				$ 156
Tax benefit recognized on restructuring expense				23	11
Tax benefits related to postretirement expenses					$ 6
Tax benefits related to Tax Act			$ 22
Deferred tax liabilities, net	$ 174			$ 174		$ 125