Leases (Tables)

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Components Of Lease Expense

	Three months ended June 30,				Six months ended June 30,
(In millions)	2020		2019		2020		2019
Finance lease cost
Depreciation of finance lease ROU assets	$	10	$	8	$	20	$	16
Interest on finance lease liabilities		1		1		2		2
Operating lease cost		6		6		13		13
Variable lease cost		1		1		1		1
Sublease income		(1)		(1)		(1)		(1)
Total lease cost	$	17	$	16	$	33	$	31

Supplemental Cash Flow Information And Other Information For Leases

	Six months ended June 30,
(In millions)	2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	14	$	12
Operating cash flows for finance leases		2		2
Financing cash flows for finance leases		20		16
ROU assets obtained in exchange for lease obligations:
Operating leases		3		5
Finance leases		16		22

Future Minimum Lease Payments Under Non-Cancellable Leases

(In millions)	Operating Leases		Finance Leases
Year ended December 31,
2020 (excluding the six months ended June 30, 2020)	$	13	$	17
2021		22		28
2022		19		18
2023		15		12
2024		11		5
Thereafter		85		1
Total future minimum lease payments		165		81