Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Lease, Cost

The components of lease expense for the year ended December 31, 2019 were as follows:

	Year Ended December 31
(Dollars in millions)	2019
Operating lease cost	$	24
Finance lease cost
Amortization of right-of-use assets	3
Interest on lease liabilities	2
Total finance lease cost	5
Short-term lease cost	—
Variable lease cost	—
Total lease cost	$	29

Other information related to leases for the year ended December 31, 2019 was as follows:

Supplemental Cash Flows Information	Year Ended December 31
(Dollars in millions)	2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$	22
Operating cash flows used for finance leases	2
Financing cash flows used for finance leases	2
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	52
Finance leases	33

	As of December 31
(Lease term in years and discount rate)	2019
Weighted-average remaining lease term
Operating Leases	8
Finance Leases	11
Weighted-average discount rate
Operating leases	3.6	%
Finance leases	4.9	%

Lessee, Operating Lease, Liability, Maturity

Future minimum lease payments under non-cancellable leases as of December 31, 2019 were as follows:

(Dollars in millions)	Operating Leases		Finance Leases
2020	$	22	$	3
2021	18		4
2022	15		3
2023	13		4
2024	8		3
Thereafter	42		34
Total lease payments	118		51
Less imputed interest	17		17
Total lease liabilities	$	101	$	34

Lessee, Lease, Components of Financial Position

Lease obligations reported as of December 31, 2019 were as follows:

(Dollars in millions)	Operating Leases		Finance Leases
Other current liabilities	$	18	$	1
Lease liabilities - non current	82		33
Other current liabilities	1		—
Total lease liabilities	$	101	$	34

Finance Lease, Liability, Maturity

Future minimum lease payments under non-cancellable leases as of December 31, 2019 were as follows:

(Dollars in millions)	Operating Leases		Finance Leases
2020	$	22	$	3
2021	18		4
2022	15		3
2023	13		4
2024	8		3
Thereafter	42		34
Total lease payments	118		51
Less imputed interest	17		17
Total lease liabilities	$	101	$	34