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Accumulated Other Comprehensive Income (Loss) (Tables)
 3 Months Ended
Mar. 31, 2014
Table Text Block [Abstract]  
Schedule Of Accumulated Other Comprehensive Income (Loss)
The following summarizes the after-tax changes in the balances of accumulated other comprehensive income (loss):
millions
Interest-rate
Derivatives
Previously
Subject to Hedge
Accounting
 
Pension and Other Postretirement
Plans
 
Total
Balance at December 31, 2013
$
(54
)
 
$
(231
)
 
$
(285
)
Reclassifications to Consolidated Statement of Income
1

 
5

 
6

Balance at March 31, 2014
$
(53
)
 
$
(226
)
 
$
(279
)