Provision (Benefit) for Income Taxes
 3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]  
Provision (Benefit) for Income Taxes [Text Block]
Note 6 – Provision (Benefit) for Income Taxes

The Provision (benefit) for income taxes includes:
 
Three months ended  
 March 31,
 
2015
 
2014
 
(Millions)
Deferred:
 
 
 
State
$
1

 
$
1

Foreign
2

 
7

 
3

 
8

Total provision (benefit)
$
3

 
$
8


The effective income tax rates for the total provision for the three months ended March 31, 2015 and 2014, are less than the federal statutory rate due to income not subject to U.S. federal tax, partially offset by taxes on foreign operations and the effect of Texas franchise tax.