MULTIEMPLOYER EMPLOYEE BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2023

Postemployment Benefits [Abstract]

Multiemployer Plans

The following table outlines our participation in multiemployer pension plans as of December 31, 2023, 2022 and 2021, and sets forth our calendar year contributions and accruals for each plan.

The EIN/Pension Plan Number column provides the Employer Identification Number ("EIN") and the three-digit plan number. The most recent Pension Protection Act zone status available in 2023 and 2022 relates to each plan's two most recent fiscal year ends. The zone status is based on information that we received from the plans’ administrators and is certified by each plan’s actuary. Plans certified in the red zone are generally less than 65% funded; plans certified in the orange zone are both less than 80% funded and have an accumulated funding deficiency, or are expected to have a deficiency in any of the next six plan years; plans certified in the yellow zone are less than 80% funded; and plans certified in the green zone are at least 80% funded.

The FIP / RP Status Pending / Implemented column indicates whether a financial improvement plan ("FIP") for yellow/orange zone plans, or a rehabilitation plan ("RP") for red zone plans, is either pending or has been implemented. As of December 31, 2023, all plans that have either a FIP or RP requirement have had the respective plan implemented. Our collectively-bargained contributions satisfy the requirements of all implemented FIPs and RPs and do not currently require the payment of any surcharges. In addition, minimum contributions outside of the agreed-upon contractual rates are not required.

For the plans detailed in the following table, the expiration date of the associated collective bargaining agreements is July 31, 2028, with the exception of the IAM National Pension Fund / National Pension Plan, which has a July 31, 2024 associated expiration date. For all plans detailed in the following table, we provided more than 5% of the total plan contributions from all employers for 2023, 2022 and 2021, as disclosed in the annual filing with the Department of Labor for each respective plan.

Certain plans have been aggregated in the All Other Multiemployer Pension Plans line in the following table, as contributions to each of these plans are not individually material.

	EIN / Pension Plan Number	Pension Protection Act Zone Status		FIP / RP Status Pending / Implemented		UPS Contributions and Accruals (in millions)						Surcharge Imposed
Pension Fund		2023	2022			2023		2022		2021
Alaska Teamster-Employer Pension Plan	92-6003463-024	Red	Red	Yes	Implemented	10		10		9		No
Central Pennsylvania Teamsters Defined Benefit Plan	23-6262789-001	Green	Green	No	NA	82		75		65		No
Eastern Shore Teamsters Pension Fund	52-0904953-001	Green	Green	No	NA	10		10		8		No
Employer-Teamsters Local Nos. 175 & 505 Pension Trust Fund	55-6021850-001	Red	Red	Yes	Implemented	21		21		18		No
Hagerstown Motor Carriers and Teamsters Pension Fund	52-6045424-001	Green	Red	No	NA	13		13		12		No
I.A.M. National Pension Fund / National Pension Plan	51-6031295-002	Red	Red	Yes	Implemented	50		48		48		No
International Brotherhood of Teamsters Union Local No. 710 Pension Fund	36-2377656-001	Green	Green	No	NA	196		191		180		No
Local 705, International Brotherhood of Teamsters Pension Plan	36-6492502-001	Green	Green	No	NA	138		136		131		No
Local 804 I.B.T. & Local 447 I.A.M.—UPS Multiemployer Retirement Plan	51-6117726-001	Green	Green	No	NA	143		144		135		No
Milwaukee Drivers Pension Trust Fund	39-6045229-001	Green	Green	No	NA	62		62		58		No
New England Teamsters & Trucking Industry Pension Fund	04-6372430-001	Red	Red	Yes	Implemented	234		167		145		No
New York State Teamsters Conference Pension and Retirement Fund	16-6063585-074	Red	Red	Yes	Implemented	139		149		147		No
Teamster Pension Fund of Philadelphia and Vicinity	23-1511735-001	Green	Green	No	NA	98		100		94		No
Teamsters Joint Council No. 83 of Virginia Pension Fund	54-6097996-001	Green	Green	No	NA	98		98		89		No
Teamsters Local 639—Employers Pension Trust	53-0237142-001	Green	Green	No	NA	84		85		80		No
Teamsters Negotiated Pension Plan	43-6196083-001	Green	Green	No	NA	49		49		45		No
Truck Drivers and Helpers Local Union No. 355 Retirement Pension Plan	52-6043608-001	Green	Green	No	NA	28		30		29		No
United Parcel Service, Inc.—Local 177, I.B.T. Multiemployer Retirement Plan	13-1426500-419	Green	Green	No	NA	122		124		116		No
Western Conference of Teamsters Pension Plan	91-6145047-001	Green	Green	No	NA	1,254		1,310		1,260		No
Western Pennsylvania Teamsters and Employers Pension Fund	25-6029946-001	Red	Red	Yes	Implemented	46		46		40		No
All Other Multiemployer Pension Plans						76		73		78
					Total Contributions	$	2,953	$	2,941	$	2,787

The following table sets forth our calendar year plan contributions and accruals. Certain plans have been aggregated in the All Other Multiemployer Health and Welfare Plans line, as the contributions to each of these plans are not individually material.

	UPS Contributions and Accruals (in millions)
Health and Welfare Fund	2023		2022		2021
Bay Area Delivery Drivers	$	40	$	40	$	41
Central Pennsylvania Teamsters Health & Pension Fund	46		42		39
Central States, South East & South West Areas Health and Welfare Fund	3,712		3,497		3,374
Delta Health Systems—East Bay Drayage Drivers	39		39		39
Joint Council #83 Health & Welfare Fund	63		62		56
Local 401 Teamsters Health & Welfare Fund	23		22		19
Local 804 Welfare Trust Fund	131		129		123
Milwaukee Drivers Pension Trust Fund—Milwaukee Drivers Health and Welfare Trust Fund	64		62		59
New York State Teamsters Health & Hospital Fund	87		89		91
Northern California General Teamsters (DELTA)	206		211		209
Northern New England Benefit Trust	83		87		81
Oregon / Teamster Employers Trust	69		70		66
Teamsters 170 Health & Welfare Fund	21		25		24
Teamsters Benefit Trust	57		58		60
Teamsters Local 175 & 505 Health and Welfare Fund	20		20		17
Teamsters Local 191 Health Fund	29		17		17
Teamsters Local 251 Health & Insurance Plan	22		26		26
Teamsters Local 638 Health Fund	73		70		66
Teamsters Local 639—Employers Health & Pension Trust Funds	36		38		40
Teamsters Local 671 Health Services & Insurance Plan	24		25		24
Teamsters Union 25 Health Services & Insurance Plan	73		75		74
Teamsters Western Region & Local 177 Health Care Plan	1,076		1,035		980
Truck Drivers and Helpers Local 355 Baltimore Area Health & Welfare Fund	23		23		23
Utah-Idaho Teamsters Security Fund	54		54		52
Washington Teamsters Welfare Trust	88		88		83
All Other Multiemployer Health and Welfare Plans	109		129		130
Total Contributions	$	6,268	$	6,033	$	5,813