Income Taxes (Tables)

3 Months Ended

Mar. 31, 2014

Income Tax Disclosure [Abstract]

Income Tax Provision (Benefit)

The income tax provision relating to continuing operations consists of the following: 

	Three Months Ended March 31,
(millions)	2014			2013
Current	$	60		$	36
Deferred	17			50
Total Income Tax Provision	$	77		$	86
Effective Tax Rate	27.6		%	27.1		%