Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2022

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The components of net periodic benefit cost are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
dollars in millions	2022		2021		2022		2021
Service cost	$	4	$	4	$	7	$	8
Interest cost	11		8		22		15
Expected return on assets	(22)		(20)		(44)		(39)
Amortization of prior service cost	—		—		—		—
Amortization of net actuarial loss	3		7		6		13
Net periodic benefit	$	(4)	$	(1)	$	(9)	$	(3)

Schedule of Nonvested Restricted Stock Units Activity

The following table presents the unvested BancShares RSUs at June 30, 2022, which have vesting periods through 2024. There were no grants of stock-based compensation awards during 2022.

Stock-Settled Awards Outstanding

	Stock-Settled Awards
per share amounts in whole dollars	Number of Shares	Weighted Average Grant Date Value
Unvested BancShares at December 31, 2021	—	$	—
Unvested CIT RSUs converted to BancShares RSUs at Merger Date	116,958	859.76
Unvested CIT PSUs converted to RSUs at Merger Date	10,678	859.76
Forfeited / cancelled	(4,496)	859.76
Vested / settled awards	(72,533)	859.76
Unvested BancShares RSUs at June 30, 2022	50,607	$	859.76