Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Schedule of Leasing Activity

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

	December 31,
Dollars in millions	2019
Operating lease cost	$	54
Short-term lease cost	121
Total lease cost	$	175

Operating lease cost for the year ended ended December 31, 2019 includes operating lease ROU asset amortization of $38 million and other noncash operating lease costs of $16 million related to the accretion of operating lease liabilities and straight-line lease accounting.

Total rent expense on our operating leases under the previous lease standard were $144 million and $139 million for the years ended December 31, 2018 and 2017, respectively.

Total short-term lease commitments as of December 31, 2019 was approximately $77 million. Additional information related to leases was as follows:

	December 31,
Dollars in millions	2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	56
Right-of-use assets obtained in exchange for new operating lease liabilities	$	20
Weighted-average remaining lease term-operating (in years)	8.0
Weighted-average discount rate-operating leases	7.6		%

Schedule of Lease Maturity

The following is a maturity analysis of the future undiscounted cash flows associated with our operating lease liabilities as of December 31, 2019:

	Year
Dollars in millions	2020		2021		2022		2023		2024		Thereafter		Total
Future payments - operating leases	$	54	$	44	$	37	$	33	$	25	$	119	$	312

Dollars in millions	Operating Leases
Total future payments	$	312
Less imputed interest	(81		)
Present value of future lease payments	$	231
Less current portion of lease obligations	(39		)
Noncurrent portion of lease obligations	$	192