Employee Benefit Plans (Additional Information) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Pension and Other Postretirement Benefits Disclosure [Line Items]
Pension settlement charge		$ 0	$ 0	$ 190
Reduction in projected benefit obligation due to non-cash settlement charge				$ 309
ABO for all defined benefit pension plans		$ 2,100	$ 2,000
Return on plan assets assumption		6.70%	6.60%	6.50%
Impact on net periodic pension expense		$ 6
Weighted-average healthcare cost trend rate assumed for next fiscal year		6.60%
Assumed ultimate health care cost trend rate		3.90%
Aggregate PBO for the pension plans with PBO in excess of plan assets		$ 1,343	$ 1,307
Aggregate fair value of plan assets for the pension plans with PBO in excess of plan assets		761	717
Aggregate ABO for the pension plans with ABO in excess of plan assets		1,300	1,274
Fair value of plan assets for the pension plans with ABO in excess of plan assets		$ 746	712
Defined Contribution Plan Contribution Rates As Percentage Of Employees Earnings		6.00%
Minimum
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined Contribution Plan Contribution Rates As Percentage Of Employees Earnings		2.00%
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year		$ 20
Maximum
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined Contribution Plan Contribution Rates As Percentage Of Employees Earnings		5.00%
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year		$ 30
Scenario, Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Impact on net periodic pension expense	$ 4
Weighted-average healthcare cost trend rate assumed for next fiscal year	5.60%
Assumed ultimate health care cost trend rate	4.00%
Pension Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans		29	26
Defined Benefit Plan, Benefit Obligation, Benefits Paid		128	120
Net actuarial loss/(gain) arising during the year		47
Estimated future benefit payments in 2022		150
Estimated future benefit payments in 2023		149
Estimated future benefit payments in 2024		148
Estimated future benefit payments in 2025		151
Estimated future benefit payments in 2026		157
Estimated aggregate future benefits payments for the five years thereafter		810
Other Postretirement Benefits
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation, Benefits Paid		34	39
Net actuarial loss/(gain) arising during the year		(16)
Estimated future benefit payments in 2022		40
Estimated future benefit payments in 2023		39
Estimated future benefit payments in 2024		38
Estimated future benefit payments in 2025		36
Estimated future benefit payments in 2026		35
Estimated aggregate future benefits payments for the five years thereafter		160
Other Postretirement Benefits | Scenario, Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Impact on net periodic pension expense	$ 1
United States
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans		$ 27	24	$ 28
Return on plan assets assumption		7.70%
Percentage of defined benefit pension plan assets market value		92.00%
United States | Scenario, Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Return on plan assets assumption	7.70%
United States | Pension Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans		$ 27	24
Defined Benefit Plan, Benefit Obligation, Benefits Paid		71	67
United States | Other Postretirement Benefits
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation, Benefits Paid		30	35
International
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans		2	2	$ 18
International | Scenario, Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Return on plan assets assumption	7.10%
International | Pension Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans		2	2
Defined Benefit Plan, Benefit Obligation, Benefits Paid		57	53
International | Other Postretirement Benefits
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation, Benefits Paid		$ 4	$ 4
Canada, Netherlands, And United Kingdom
Pension and Other Postretirement Benefits Disclosure [Line Items]
Percentage of defined benefit pension plan assets market value		92.00%