RETIREMENT AND DEFERRED COMPENSATION PLANS - Changes in Benefit Obligation, Fair Value of Plan Assets and Funded Status of Pension and Postretirement Benefit Plans (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Change in Plan Assets
Fair value of plan assets at beginning of year	$ 206
Fair value of plan assets at end of year	238	$ 206
Pension Benefits
Change in Projected Benefit Obligation
Projected benefit obligation beginning of year	202	202	$ 216
Service cost	4	4	5
Interest cost	6	7	8
Foreign currency exchange rate changes	20	(39)	(10)
Actuarial losses (gains)	(4)	32	(10)
Effect of curtailment and settlements	0	0	0
Benefits paid	(12)	(4)	(7)
Retiree contributions	0	0	0
Projected benefit obligation at end of year	216	202	202
Change in Plan Assets
Fair value of plan assets at beginning of year	206	197	206
Actual return on plan assets	17	46	1
Foreign currency exchange rates	22	(39)	(10)
Employer contributions	5	6	7
Benefits paid	(12)	(4)	(7)
Retiree contributions	0	0	0
Fair value of plan assets at end of year	238	206	197
Funded status at end of year	22	4	(5)
Amounts recognized in Consolidated Balance Sheet
Current liability	0	0	0
Non-current asset (liability)	22	4	(5)
Total defined benefit plans liabilities	22	4	(5)
Pre-tax Amounts Recognized in Accumulated Other Comprehensive Income (Loss)
Accumulated gain (loss)	$ (11)	$ (25)	$ (32)
Weighted Average Assumptions used as of December 31
Discount rate	2.60%	2.70%	3.90%
Salary increases	4.70%	4.80%	4.60%
Expected return on assets	2.90%	3.40%	4.10%
Postretirement Benefits
Change in Projected Benefit Obligation
Projected benefit obligation beginning of year	$ 26	$ 26	$ 22
Service cost	2	2	2
Interest cost	1	1	1
Foreign currency exchange rate changes	0	0	0
Actuarial losses (gains)	1	(2)	0
Effect of curtailment and settlements	0	0	2
Benefits paid	(4)	(3)	(2)
Retiree contributions	1	2	1
Projected benefit obligation at end of year	27	26	26
Change in Plan Assets
Fair value of plan assets at beginning of year	0	0	0
Actual return on plan assets	0	0	0
Foreign currency exchange rates	0	0	0
Employer contributions	3	1	1
Benefits paid	(4)	(3)	(2)
Retiree contributions	1	2	1
Fair value of plan assets at end of year	0	0	0
Funded status at end of year	(27)	(26)	(26)
Amounts recognized in Consolidated Balance Sheet
Current liability	(2)	(2)	(2)
Non-current asset (liability)	(25)	(24)	(24)
Total defined benefit plans liabilities	(27)	(26)	(26)
Pre-tax Amounts Recognized in Accumulated Other Comprehensive Income (Loss)
Accumulated gain (loss)	$ 8	$ 9	$ 9
Weighted Average Assumptions used as of December 31
Discount rate	3.44%	3.76%	3.95%
Healthcare cost trend
Initial	6.75%	7.00%	7.00%
Ultimate in 2025	5.00%	5.00%	5.00%

Defined benefit plan assumptions used calculating benefit obligation expected return on assets.

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Health care cost trend.

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Pension and other postretirement defined benefit plans assets liabilities noncurrent.

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Pension and other postretirement defined benefit plans liabilities net current and noncurrent.

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Amount of (increase) decrease in accumulated benefit obligation of defined benefit plan from effects of settlement and curtailment.

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Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets still held.

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Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increase benefit obligation.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees.

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Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.

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Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

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Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increases plan assets.

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Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan.

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Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Ultimate trend rate for health care cost for defined benefit postretirement plan.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

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