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RESTRUCTURING CHARGES (Tables)
 12 Months Ended
Dec. 31, 2021
Restructuring and Related Activities [Abstract]  
Restructuring Reserve Activity
The following table presents our restructuring liability activity during the period:
($ in millions)Employee termination benefits
Balance at December 31, 2020$143 
Charges— 
Cash payments(122)
Other(6)
Balance at December 31, 2021, classified in “Accrued expenses and other”$15