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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Change in Accounting Estimate
The following table presents the effect of aggregate net EAC adjustments:
Year Ended December 31
$ in millions, except per share data202520242023
Revenue$534 $396 $298 
Operating income209 350 84 
Net earnings(1)
165 277 66 
Diluted earnings per share(1)
1.15 1.88 0.43 
(1)Based on a 21% federal statutory tax rate.
Contract with Customer, Asset and Liability
Net contract assets are as follows:
$ in millionsDecember 31, 2025December 31, 2024$ Change% Change
Unbilled receivables, net$6,544 $5,908 $636 11 %
Advance payments and amounts in excess of costs incurred(4,086)(4,070)(16)— %
Net contract assets$2,458 $1,838 $620 34 %
Property, Plant and Equipment
Major classes of PP&E and their useful lives are as follows:
 December 31
Useful life in years, $ in millionsUseful Life20252024
Land and land improvements
   Up to 40(1)
$792 $782 
Buildings and improvements
Up to 45
4,278 4,031 
Machinery and other equipment
Up to 30
10,931 10,389 
Capitalized software costs
3-7
1,068 779 
Leasehold improvements
Lease Term(2)
3,551 3,288 
Property, plant and equipment, at cost20,620 19,269 
Accumulated depreciation(9,648)(8,733)
Property, plant and equipment, net$10,972 $10,536 
(1)Land is not a depreciable asset.
(2)Leasehold improvements are depreciated over the shorter of the useful life of the asset or lease term.
Accumulated Other Comprehensive Loss
The components of accumulated other comprehensive loss, net of tax, are as follows:
 December 31
$ in millions20252024
Cumulative translation adjustment$(131)$(140)
Other, net5 (12)
Total accumulated other comprehensive loss$(126)$(152)