Leases (Tables)

9 Months Ended

Sep. 30, 2019

Leases [Abstract]

Schedule of Lease Costs and Supplemental Cash Flows

The components of lease expense for the nine months ended September 30, 2019 were as follows:

(Dollars in millions)	Three months ended September 30, 2019		Nine months ended September 30, 2019
Operating lease cost	$	7	$	18
Finance lease cost
Amortization of right-of-use assets	1		2
Interest on lease liabilities	—		1
Total finance lease cost	1		3
Short-term lease cost	—		—
Variable lease cost	—		—
Total lease cost	$	8	$	21

Other information related to leases for the nine months ended September 30, 2019 was as follows:

Supplemental Cash Flows Information	Nine months ended September 30, 2019
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$	16
Operating cash flows used for finance leases	1
Financing cash flows used for finance leases	1
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	46
Finance leases	33

	As of
(Lease term in years and discount rate)	September 30, 2019
Weighted-average remaining lease term
Operating Leases	8
Finance Leases	11
Weighted-average discount rate
Operating leases	3.9	%
Finance leases	4.9	%

Schedule of Future Minimum Finance Lease Payments

Future minimum lease payments under non-cancellable leases as of September 30, 2019 were as follows:

(Dollars in millions)	Operating Leases		Finance Leases
2019 (excluding the nine months ended September 30, 2019)	$	6	$	1
2020	21		4
2021	16		15
2022	14		3
2023	13		3
Thereafter	49		37
Total lease payments	119		63
Less imputed interest	20		17
Total lease liabilities	$	99	$	46

Schedule of Future Minimum Operating Lease Payments

Future minimum lease payments under non-cancellable leases as of September 30, 2019 were as follows:

(Dollars in millions)	Operating Leases		Finance Leases
2019 (excluding the nine months ended September 30, 2019)	$	6	$	1
2020	21		4
2021	16		15
2022	14		3
2023	13		3
Thereafter	49		37
Total lease payments	119		63
Less imputed interest	20		17
Total lease liabilities	$	99	$	46

Schedule of Lease Obligations

Lease obligations reported as of September 30, 2019 were as follows:

(Dollars in millions)	Operating Leases		Finance Leases
Other current liabilities	$	18	$	1
Lease liabilities - non current	81		33
Related party leases	—		12
Total lease liabilities	$	99	$	46