Leases (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Schedule of Lease Costs and Supplemental Cash Flows

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

(Dollars in millions)	Three months ended June 30, 2019		Six months ended June 30, 2019
Operating lease cost	$	6	$	11
Finance lease cost
Amortization of right-of-use assets	—		1
Interest on lease liabilities	1		1
Total finance lease cost	1		2
Short-term lease cost	—		—
Variable lease cost	—		—
Total lease cost	$	7	$	13

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

Supplemental Cash Flows Information	Six months ended June 30, 2019
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$	10
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	32
Finance leases	33

	As of
(Lease term and discount rate)	June 30, 2019
Weighted-average remaining lease term
Operating Leases	8
Finance Leases	11
Weighted-average discount rate
Operating leases	3.7	%
Finance leases	4.9	%

Schedule of Future Minimum Finance Lease Payments

Supplemental Cash Flows Information	Six months ended June 30, 2019
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$	10
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	32
Finance leases	33

	As of
(Lease term and discount rate)	June 30, 2019
Weighted-average remaining lease term
Operating Leases	8
Finance Leases	11
Weighted-average discount rate
Operating leases	3.7	%
Finance leases	4.9	%

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

Schedule of Future Minimum Operating Lease Payments

Supplemental Cash Flows Information	Six months ended June 30, 2019
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$	10
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	32
Finance leases	33

	As of
(Lease term and discount rate)	June 30, 2019
Weighted-average remaining lease term
Operating Leases	8
Finance Leases	11
Weighted-average discount rate
Operating leases	3.7	%
Finance leases	4.9	%

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

Schedule of Lease Obligations

Leases obligations reported as of June 30, 2019 were as follows:

(Dollars in millions)	Operating Leases		Finance Leases
Other current liabilities	$	17	$	1
Lease liabilities - non current	75		33
Related party leases	1		12
Total lease liabilities	$	93	$	46