Employee Benefit Plans (Additional Information) (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2017	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans				$ 75
Pension settlement charge			$ 13	0	$ 0
ABO for all defined benefit pension plans			$ 3,800	$ 3,400
Return on plan assets assumption			5.00%	5.40%	5.40%
Impact on net periodic pension expense			$ 13
Weighted-average healthcare cost trend rate assumed for next fiscal year			4.80%
Assumed ultimate health care cost trend rate			4.30%
Aggregate PBO for the pension plans with PBO in excess of plan assets			$ 2,478	$ 2,223
Aggregate fair value of plan assets for the pension plans with PBO in excess of plan assets			1,504	1,449
Aggregate ABO for the pension plans with ABO in excess of plan assets			2,320	2,176
Fair value of plan assets for the pension plans with ABO in excess of plan assets			1,383	1,449
Maximum
Pension and Other Postretirement Benefits Disclosure [Line Items]
Estimated future mandatory contributions, low end of range			20
Scenario, Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Impact on net periodic pension expense		$ 3
Weighted-average healthcare cost trend rate assumed for next fiscal year		5.10%
Assumed ultimate health care cost trend rate		4.20%
Pension Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans			17	13
Defined Benefit Plan, Benefit Obligation, Benefits Paid			193	144
Net actuarial loss arising during the year			218
Estimated future benefit payments in 2020			171
Estimated future benefit payments in 2021			159
Estimated future benefit payments in 2022			166
Estimated future benefit payments in 2023			170
Estimated future benefit payments in 2024			173
Estimated aggregate future benefits payments for the five years thereafter			890
Other Postretirement Benefits
Pension and Other Postretirement Benefits Disclosure [Line Items]
Plan amendments			4	(17)
Defined Benefit Plan, Benefit Obligation, Benefits Paid			44	49
Net actuarial loss arising during the year			82
Estimated future benefit payments in 2020			54
Estimated future benefit payments in 2021			53
Estimated future benefit payments in 2022			51
Estimated future benefit payments in 2023			50
Estimated future benefit payments in 2024			49
Estimated aggregate future benefits payments for the five years thereafter			$ 210
Other Postretirement Benefits | Scenario, Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Impact on net periodic pension expense		$ 6
Postretirement Health Coverage
Pension and Other Postretirement Benefits Disclosure [Line Items]
Plan amendments	$ 306
Amortization reduction period	5 years 7 months 6 days
U.S. Qualified Pension Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation, Benefits Paid					$ 52
Welfare Benefits - U.S.
Pension and Other Postretirement Benefits Disclosure [Line Items]
Percentage of defined benefit pension plan assets market value			87.00%
United States
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans			$ 0	0	75
Return on plan assets assumption			7.40%
United States | Scenario, Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Return on plan assets assumption		7.40%
United States | Pension Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans			$ 0	0
Defined Benefit Plan, Benefit Obligation, Benefits Paid			133	80
United States | Other Postretirement Benefits
Pension and Other Postretirement Benefits Disclosure [Line Items]
Plan amendments			4	(17)
Defined Benefit Plan, Benefit Obligation, Benefits Paid			39	44
International
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans			17	13	$ 24
International | Minimum
Pension and Other Postretirement Benefits Disclosure [Line Items]
Estimated future mandatory contributions, low end of range			10
International | Scenario, Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Return on plan assets assumption		4.80%
International | Pension Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Contributions to defined benefit pension plans			17	13
Defined Benefit Plan, Benefit Obligation, Benefits Paid			60	64
International | Other Postretirement Benefits
Pension and Other Postretirement Benefits Disclosure [Line Items]
Plan amendments			0	0
Defined Benefit Plan, Benefit Obligation, Benefits Paid			$ 5	$ 5
United States, Canada, Netherlands and United Kingdom
Pension and Other Postretirement Benefits Disclosure [Line Items]
Percentage of defined benefit pension plan assets market value			93.00%