Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Contributions	$ 32	$ 33	$ 36
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	276	234
Defined Benefit Plan, Accumulated Benefit Obligation	811	713
Estimated future benefit payments, 2014	28
Estimated future benefit payments, 2015	28
Estimated future benefit payments, 2016	30
Estimated future benefit payments, 2017	31
Estimated future benefit payments, 2018	31
Estimated future benefit payments, 2019 to 2023	175
Contribution to multiemployer plans	$ 9	$ 9	$ 9
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on plan assets	7.00%	7.00%	7.00%
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 10
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on plan assets	4.50%	4.50%	4.70%
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 1