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Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Goodwill by Reportable Segments
The changes in the carrying amount of goodwill in each of the Company’s reportable segments for the years ended December 31, 2021 and 2020 were as follows:
Dollars in millionsGovernment SolutionsSustainable Technology SolutionsTotal
Balance as of January 1, 2020$978 $287 $1,265 
Goodwill acquired during the period (Note 4)589 — 589 
Goodwill reallocation19 (19)— 
Impairment loss— (99)(99)
Foreign currency translation
Balance as of January 1, 2021$1,589 $172 $1,761 
Goodwill acquired during the period (Note 4)306 — 306 
Foreign currency translation (5)(2)(7)
Balance as of December 31, 2021$1,890 $170 $2,060 
Summary of Cost and Accumulated Amortization of Intangible Assets The cost and accumulated amortization of our intangible assets were as follows:
Dollars in millionsDecember 31, 2021
Weighted Average Remaining Useful LivesIntangible Assets, GrossAccumulated AmortizationIntangible Assets, Net
Trademarks/trade namesIndefinite$50 $— $50 
Customer relationships14546 (124)422 
Developed technologies1875 (39)36 
Contract backlog18303 (113)190 
Other1125 (15)10 
Total intangible assets$999 $(291)$708 
December 31, 2020
Weighted Average Remaining Useful LivesIntangible Assets, GrossAccumulated AmortizationIntangible Assets, Net
Trademarks/trade namesIndefinite$50 $— $50 
Customer relationships15470 (100)370 
Developed technologies1975 (37)38 
Contract backlog18291 (76)215 
Other1325 (15)10 
Total intangible assets$911 $(228)$683 
Summary of Amortization Expense of Intangible Assets
Our intangibles amortization expense is presented below:
Years ended December 31,
Dollars in millions202120202019
Intangibles amortization expense$66 $42 $33 
Summary of Expected Amortization Expense of Intangibles
Our expected intangibles amortization expense for the next five years is presented below:
Dollars in millionsExpected future
intangibles
amortization expense
2022$51 
2023$43 
2024$42 
2025$42 
2026$42 
Beyond 2026$438