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Discontinued Operations (Tables)
3 Months Ended
Jun. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]  
Schedule of Results from Discontinued Operations
 
Quarter Ended June 30,
(In millions)
2013
 
2012
Revenues
$
116

 
$
99

 
 
 
 
Income from discontinued operations
$
5

 
$
3

Income tax expense
(1
)
 
(2
)
Income from discontinued operations, net of tax
$
4

 
$
1