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Business Dispositions and Discontinued Operations (Unaudited) (Tables)
6 Months Ended
Jun. 30, 2012
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued operations income statement
Earnings for the former shipbuilding business and an adjustment to the gain from a previous divestiture recognized in the six months ended June 30, 2011, are reported as discontinued operations, as presented in the following table:
$ in millions
 
Sales

$1,646

Earnings from discontinued operations
59

Income tax expense
(26
)
Earnings, net of tax
33

Gain on previous divestiture, net of income tax expense of $1
1

Earnings from discontinued operations, net of tax

$ 34

There were no assets or liabilities related to these discontinued operations included in the condensed consolidated statements of financial position as of June 30, 2012, or December 31, 2011.