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Guarantees (Tables)
 3 Months Ended
Mar. 31, 2022
Service and Product Warranties and Product Performance Guarantees [Abstract]  
Schedule of guarantees As of March 31, 2022 and December 31, 2021, the following financial guarantees were outstanding:
March 31, 2022December 31, 2021
(dollars in millions)Maximum Potential PaymentCarrying Amount of LiabilityMaximum Potential PaymentCarrying Amount of Liability
Commercial aerospace financing arrangements$304 $— $309 $3 
Third party guarantees503 4 511 5 
Product Warranty Disclosure [Table Text Block] The changes in the carrying amount of service and product warranties and product performance guarantees for the quarters ended March 31, 2022 and 2021 were as follows:
(dollars in millions)20222021
Balance as of January 1$1,157 $1,057 
Warranties and performance guarantees issued71 113 
Settlements(74)(69)
Other— (1)
Balance as of March 31$1,154 $1,100