Pension and Other Benefit Plans - Weighted-Average Allocation of Plan Assets and Target Allocation by Asset Category (Detail)	Dec. 31, 2023	Dec. 31, 2022
US
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	100.00%
Weighted-average allocation of plan assets	100.00%	100.00%
International
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	100.00%
Weighted-average allocation of plan assets	100.00%	100.00%
Cash and cash equivalents | US
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	1.00%	2.00%
Cash and cash equivalents | US | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	0.00%
Cash and cash equivalents | US | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	3.00%
Cash and cash equivalents | International
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	3.00%	2.00%
Cash and cash equivalents | International | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	0.00%
Cash and cash equivalents | International | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	5.00%
Equity securities | US | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	0.00%
Equity securities | US | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	5.00%
Equity securities | International
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	1.00%	10.00%
Equity securities | International | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	0.00%
Equity securities | International | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	5.00%
Debt securities | US
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	84.00%	83.00%
Debt securities | US | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	80.00%
Debt securities | US | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	90.00%
Debt securities | International
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	69.00%	56.00%
Debt securities | International | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	60.00%
Debt securities | International | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	70.00%
Private equity and real estate | US
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	10.00%	11.00%
Private equity and real estate | US | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	5.00%
Private equity and real estate | US | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	12.00%
Private equity and real estate | International
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	17.00%	19.00%
Private equity and real estate | International | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	15.00%
Private equity and real estate | International | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	20.00%
Private debt | US
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	5.00%	4.00%
Private debt | US | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	2.00%
Private debt | US | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	8.00%
Private debt | International
Defined Benefit Plan Disclosure [Line Items]
Weighted-average allocation of plan assets	10.00%	13.00%
Private debt | International | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	9.00%
Private debt | International | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of assets	15.00%