Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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Defined Benefit Plan Disclosure [Line Items] | |||
Contributions | $ 33 | $ 36 | $ 33 |
Amortized from accumulated other comprehensive income into net periodic benefit cost | 7 | ||
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets | 234 | 264 | |
Defined Benefit Plan, Accumulated Benefit Obligation | 713 | 769 | |
Estimated future benefit payments, 2014 | 27 | ||
Estimated future benefit payments, 2015 | 28 | ||
Estimated future benefit payments, 2016 | 29 | ||
Estimated future benefit payments, 2017 | 30 | ||
Estimated future benefit payments, 2018 | 31 | ||
Estimated future benefit payments, 2019 to 2023 | 172 | ||
Contribution to multiemployer plans | $ 9 | $ 9 | $ 9 |
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost for defined contribution plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of contributions made to multiemployer plan by employer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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