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Leases - Supplemental Cash Flow Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 31
Financing cash flows from finance leases	5
ROU assets obtained in exchange for new lease liabilities
Operating	17
Finance	$ 20

X

- Definition

Cash paid for amounts included in the measurements of lease liabilities.

+ References

No definition available.

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- Definition

Right of use assets obtained in exchange for new lease liabilities.

+ References

No definition available.

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- Definition

Amount of cash outflow for principal payment on finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977

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-Section 50
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-Subparagraph (g)(1)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (c)
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- Definition

Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

+ References

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-Publisher FASB
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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

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-URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971

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