LEASES (Tables)

12 Months Ended

Mar. 31, 2023

LEASES

Schedule of components of lease expense

			Three Months
	Year Ended		Ended
	March 31,		March 31,		Year Ended December 31,
(Dollars in millions)	2023		2022		2021		2020
Finance lease costs	$	85	$	21	$	69	$	61
Operating lease costs		434		111		354		424
Short-term lease costs		7		4		7		10
Variable lease costs		108		16		73		114
Sublease income		(9)		(1)		(5)		(4)
Total lease costs	$	625	$	150	$	498	$	605

Schedule of supplemental information relating to the cash flows arising from lease transactions

			Three Months
	Year Ended		Ended
	March 31,		March 31,		Year Ended December 31,
(Dollars in millions)	2023		2022		2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows for finance leases	$	5	$	1	$	3	$	3
Financing cash outflows for finance leases		83		20		70		72
Operating cash outflows for operating leases		417		118		327		450
Right-of-use assets obtained in exchange for new finance lease liabilities		111		19		86		129
Right-of-use assets obtained in exchange for new operating lease liabilities		175		67		562		336

Schedule of weighted-average lease terms and discount rates

	March 31,		March 31,		December 31,
	2023		2022		2021
Finance leases
Weighted-average remaining lease term	3.5	years	3.6	years	3.3	years
Weighted-average discount rate	3.36	%	1.82	%	1.41	%
Operating leases
Weighted-average remaining lease term	4.7	years	5.1	years	5.2	years
Weighted-average discount rate	4.38	%	2.84	%	2.66	%

Schedule of maturities of the finance leases liabilities

Year Ending	March 31,		March 31,		March 31,		March 31,		March 31,				Imputed
(Dollars in millions)	2024		2025		2026		2027		2028		Thereafter		Interest*		Total**
Finance leases	$	67	$	78	$	61	$	35	$	21	$	—	$	(20)	$	242
Operating leases		350	$	256	$	206	$	120	$	65	$	138	$	(113)		1,022

*      Imputed interest represents the difference between undiscounted cash flows and discounted cash flows.

**    The Company entered into lease agreements for certain facilities and equipment with payments totaling approximately $2 million that have not yet commenced as of March 31, 2023 and therefore are not included in this table.

Schedule of maturities of the operating leases liabilities

Year Ending	March 31,		March 31,		March 31,		March 31,		March 31,				Imputed
(Dollars in millions)	2024		2025		2026		2027		2028		Thereafter		Interest*		Total**
Finance leases	$	67	$	78	$	61	$	35	$	21	$	—	$	(20)	$	242
Operating leases		350	$	256	$	206	$	120	$	65	$	138	$	(113)		1,022

*      Imputed interest represents the difference between undiscounted cash flows and discounted cash flows.

**    The Company entered into lease agreements for certain facilities and equipment with payments totaling approximately $2 million that have not yet commenced as of March 31, 2023 and therefore are not included in this table.

Schedule of finance leases recognized in the Consolidated Balance Sheet

	March 31,				December 31,
(Dollars in millions)	2023		2022		2021
Right-of-use assets – Property and equipment	$	245	$	220	$	221
Lease liabilities:
Current		82		68		76
Noncurrent		160		151		147