[Line Items] for Income Taxes [Table]

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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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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 repatriation of foreign earnings.

+ References

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- Definition

Amount of income tax benefit for remeasurement of deferred tax liability from change in tax rate pursuant to Tax Cuts and Jobs Act.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
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Amount of reasonable estimate for income tax expense (benefit) for which accounting for tax effect for remeasurement of deferred tax from change in tax rate is incomplete pursuant to Tax Cuts and Jobs Act.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 2A
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Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act.

+ References

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-Publisher FASB
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-Topic 220
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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act.

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-Publisher FASB
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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act, classified as noncurrent.

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Income Taxes - U.S. Tax Cuts and Jobs Act (Tax Act) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019
Income Taxes [Line Items]
Provisional income tax charge		$ 61	$ (394)
U.S fedneral and state tax charge for deemed repatriation of accumulated foreign components			467
Estimated charge for foreign withholding taxes related to anticipated future repatriation of foreign earnings			260
Estimated deferred tax benefit for the revaluation of net deferred tax liabilities			333
Deemed repatriation tax payable	$ 291	291	$ 422	$ 261
Tax Act liabilities for deemed repatriation (Note 7)	265	265		$ 235
Tax Cuts and Jobs Act, reclassification from AOCI to retained earnings, tax effect		0
United States
Income Taxes [Line Items]
Provisional income tax charge		41
State and Local Jurisdiction
Income Taxes [Line Items]
Provisional income tax charge		20
Retained Earnings
Income Taxes [Line Items]
Tax Cuts and Jobs Act, reclassification from AOCI to retained earnings, tax effect	93	$ 93
Retained Earnings \| United States
Income Taxes [Line Items]
Tax Cuts and Jobs Act, reclassification from AOCI to retained earnings, tax effect	98
Retained Earnings \| State and Local Jurisdiction
Income Taxes [Line Items]
Tax Cuts and Jobs Act, reclassification from AOCI to retained earnings, tax effect	$ (5)