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Contract Assets and Liabilities (Tables)
3 Months Ended
Mar. 31, 2023
Revenue from Contract with Customer [Abstract]  
Contract with Customer, Asset and Liability Total contract assets and contract liabilities were as follows:
(dollars in millions)March 31, 2023December 31, 2022
Contract assets$12,729 $11,534 
Contract liabilities(14,870)(14,598)
Net contract liabilities$(2,141)$(3,064)