Leases (Tables)

12 Months Ended

Dec. 31, 2023

Leases [Abstract]

Lease Related Assets and Liabilities

The following schedule presents ROU assets and lease liabilities with associated weighted average remaining life and discount rate:

	December 31,
(Dollar amounts in millions)	2023			2022
Operating leases
ROU assets, net of amortization	$	172		$	173
Lease liabilities	198			198
Finance leases
ROU assets, net of amortization	3			4
Lease liabilities	4			4
Weighted average remaining lease term (years)
Operating leases	8.7			8.4
Finance leases	16.5			17.4
Weighted average discount rate
Operating leases	3.4		%	2.9		%
Finance leases	3.1		%	3.1		%

Lease Expense

The following schedule presents additional information related to lease expense:

	Year Ended December 31,
(In millions)	2023		2022		2021
Lease expense:
Operating lease expense	$	43	$	46	$	47
Other expenses associated with operating leases 1	60		51		50
Total lease expense	$	103	$	97	$	97
Related cash disbursements for operating leases	$	49	$	50	$	50

1 Other expenses primarily include property taxes and building and property maintenance.

Lease Maturity Analysis

The following schedule presents the total contractual undiscounted lease payments for operating lease liabilities by expected due date for each of the next five years:

(In millions)	Total undiscounted lease payments
2024	$	43
2025	36
2026	31
2027	22
2028	17
Thereafter	85
Total lease payments	$	234
Less imputed interest	36
Total	$	198