SHARE-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Schedule of compensation cost for share-based payment arrangements, allocation of share-based compensation costs by plan

The following table details our share-based compensation expense related to award grants to our officers, directors, and employees:

	Three Months Ended
($ in millions)	March 31, 2022		March 31, 2021
Service-based RSUs	$	7	$	6
Performance-based RSUs	—		1
	7		7
SARs	1		1
	$	8	$	8

Schedule of unrecognized compensation cost, unvested awards

The following table details our deferred compensation costs related to unvested awards:

($ in millions)	At March 31, 2022		At December 31, 2021
Service-based RSUs	$	51	$	33
Performance-based RSUs	10		—
	61		33
SARs	5		2
	$	66	$	35

Assumptions used to estimate fair value of grants

The following table outlines the assumptions used to estimate the fair value of grants during the first quarter of 2022:

Expected volatility	42.86%
Dividend yield	1.53%
Risk-free rate	1.77%
Expected term (in years)	6.25