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Income Taxes (Tables)

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Reconciliation of Provision of Income Taxes

The following table shows our income tax provision and effective tax rate:

		Three Months Ended September 30,								Percentage Change			Nine Months Ended September 30,								Percentage Change
		2018				2017							2018				2017
		($ in millions)											($ in millions)
Income tax provision		$	46			$	64			(28.1	)%		$	234			$	178			31.5	%
Effective tax rate		22.0		%		27.4		%					31.8		%		26.9		%

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- References

No definition available.

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- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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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