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Percentage-Of-Completion Contracts (Tables)
 12 Months Ended
Dec. 31, 2015
Contractors [Abstract]  
Schedule Of Unapproved Claims And Change Orders
The amounts of unapproved change orders and claims included in determining the profit or loss on contracts are as follows:
Dollars in millions
2015
 
2014
Beginning balance
$
31

 
$
115

Adjustments due to changes in estimates-at-completion
71

 
87

Adjustments due to approvals
(42
)
 
(171
)
Adjustment due to disposition of businesses
(14
)
 
—

Amounts included in project estimates-at-completion at December 31,
$
46

 
$
31

 
 
 
 
Amounts recorded in revenues on a percentage-of-completion basis at December 31,
$
41

 
$
24