Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Lease Related Assets and Liabilities

The following schedule presents lease-related assets and liabilities, their weighted average remaining life, and the weighted average discount rate.

(Dollar amounts in millions)	December 31, 2020			December 31, 2019
Operating assets and liabilities
Operating right-of-use assets, net of amortization	$	213		$	218
Operating lease liabilities	240			246
Weighted average remaining lease term (years)
Operating leases	8.9			9.1
Finance leases	19.2			20.2
Weighted average discount rate
Operating leases	2.9		%	3.2		%
Finance leases	3.1		%	3.1		%

Lease Expense

The components of lease expense are as follows:

	Year Ended December 31,
(In millions)	2020		2019
Operating lease costs	$	49	$	48
Variable lease costs	49		53
Total lease cost	$	98	$	101

Supplemental cash flow information related to leases is as follows:

	Year Ended December 31,
(In millions)	2020		2019
Cash paid for amounts in the measurement of lease liabilities:
Operating cash disbursements from operating leases	$	51	$	50

ROU assets obtained in exchange for lease liabilities:

	Year Ended December 31,
(In millions)	2020		2019
New operating lease liabilities	$	9	$	10
New finance lease liabilities	—		6
Total	$	9	$	16

Lease Maturity Analysis

Maturities analysis for operating lease liabilities as of December 31, 2020 is as follows (contractual undiscounted lease payments):

(In millions)	Contractual lease payments
2021	$	49
2022	46
2023	39
2024	30
2025	21
Thereafter	95
Total	$	280