Leases (Tables)

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Components Of Lease Expense

	Three months ended March 31,
(In millions)	2020		2019
Finance lease cost
Depreciation of finance lease ROU assets	$	10	$	8
Interest on finance lease liabilities		1		1
Operating lease cost		7		7
Variable lease cost		—		—
Sublease income		(1)		(1)
Total lease cost	$	17	$	16

Supplemental Cash Flow Information And Other Information For Leases

	As of March 31,
(In millions)	2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases		7	$	6
Operating cash flows for finance leases		1		1
Financing cash flows for finance leases		9		8
ROU assets obtained in exchange for lease obligations:
Operating leases		2		3
Finance leases		5		10

Future Minimum Lease Payments Under Non-Cancellable Leases

(In millions)	Operating Leases		Finance Leases
Year ended December 31,
2020 (excluding the three months ended March 31, 2020)	$	20	$	27
2021		23		29
2022		20		19
2023		15		12
2024		11		5
Thereafter		85		1
Total future minimum lease payments		174		92