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STOCK INCENTIVE PLANS - Components of Restricted Stock Units (Detail) $ in Millions | 6 Months Ended
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Jun. 30, 2019 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unvested restricted stock units (in shares) | shares | 2,781,415
Unrecognized compensation expense | $ 20
Intrinsic value | $ 33
Weighted average remaining life (in years) | 2 years 2 months 4 days
Service-Based Units [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unvested restricted stock units (in shares) | shares | 1,863,588
Unrecognized compensation expense | $ 13
Intrinsic value | $ 22
Weighted average remaining life (in years) | 2 years 2 months 8 days
Performance-Based Units [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unvested restricted stock units (in shares) | shares | 917,827
Unrecognized compensation expense | $ 7
Intrinsic value | $ 11
Weighted average remaining life (in years) | 2 years 2 months 1 day

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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