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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Amount of foreign earnings repatriated	$ 500		$ 29,700
Effective income tax rate	21.20%		19.50%
Tax benefit impacting effective tax rate			$ 202
Decrease from settlement of tax examination		$ 706	736
Potential decrease in unrecognized tax benefits	$ 100		$ 100

X

- Definition

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
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X

- Definition

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

+ References

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- Definition

Amount of foreign earnings repatriated from subsidiaries outside the country of domicile.

+ References

No definition available.

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- Definition

Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

+ References

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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