PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

12 Months Ended

Dec. 31, 2020

Retirement Benefits [Abstract]

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

Defined Benefit Pension Plans

The Company has both funded and unfunded defined benefit pension plans that cover employees in the United States and a number of other countries. The U.S. qualified plan covering the parent company is the largest plan. Benefits for employees hired before January 1, 2008, are based on length of service and the employee’s three highest consecutive years of compensation. Employees hired after January 1, 2008, earn benefits that are based on a set percentage of annual pay, plus interest.

The Company's funding policy is to contribute to the plans when pension laws and/or economics either require or encourage funding. In 2020, the Company contributed $299 million to its pension plans, including contributions to fund benefit payments for the Company's unfunded pension plans. The Company expects to contribute approximately $300 million to its pension plans in 2021.

The weighted-average assumptions used to determine pension plan obligations and net periodic benefit costs for all plans are summarized in the table below:

Weighted-Average Assumptions for All Pension Plans	Benefit Obligations at Dec 31				Net Periodic Costs for the Year Ended
	2020		2019		2020		2019		2018
Discount rate	2.20	%	2.81	%	2.81	%	3.50	%	3.17	%
Interest crediting rate for applicable benefits	3.55	%	3.51	%	3.51	%	3.72	%	3.61	%
Rate of compensation increase	3.91	%	3.92	%	3.92	%	3.92	%	3.88	%
Expected return on plan assets					7.00	%	7.11	%	7.11	%

The weighted-average assumptions used to determine pension plan obligations and net periodic benefit costs for U.S. plans are summarized in the table below:

Weighted-Average Assumptions for U.S. Pension Plans	Benefit Obligations at Dec 31				Net Periodic Costs for the Year Ended
	2020		2019		2020		2019		2018
Discount rate	2.71	%	3.41	%	3.41	%	4.15	%	3.66	%
Interest crediting rate for applicable benefits	4.50	%	4.50	%	4.50	%	4.50	%	4.50	%
Rate of compensation increase	4.25	%	4.25	%	4.25	%	4.25	%	4.25	%
Expected return on plan assets					7.95	%	7.92	%	7.92	%

Other Postretirement Benefit Plans

The Company provides certain health care and life insurance benefits to retired employees and survivors. The Company’s plans outside of the United States are not significant; therefore, this discussion relates to the U.S. plans only. The plans provide health care benefits, including hospital, physicians’ services, drug and major medical expense coverage, and life insurance benefits. In general, for employees hired before January 1, 1993, the plans provide benefits supplemental to Medicare when retirees are eligible for these benefits. The Company and the retiree share the cost of these benefits, with the Company portion increasing as the retiree has increased years of credited service, although there is a cap on the Company portion. The Company has the ability to change these benefits at any time. Employees hired after January 1, 2008, are not covered under the plans.

The Company funds most of the cost of these health care and life insurance benefits as incurred. In 2020, the Company did not make any contributions to its other postretirement benefit plan trusts. The trusts did not hold assets at December 31, 2020. The Company does not expect to contribute assets to its other postretirement benefit plan trusts in 2021.

The weighted-average assumptions used to determine other postretirement benefit plan obligations and net periodic benefit costs for the U.S. plans are provided below:

Weighted-Average Assumptions for U.S. Other Postretirement Benefits Plans	Benefit Obligations at Dec 31				Net Periodic Costs for the Year Ended
	2020		2019		2020		2019		2018
Discount rate	2.38	%	3.19	%	3.19	%	4.01	%	3.51	%
Health care cost trend rate assumed for next year	6.75	%	6.25	%	6.25	%	6.50	%	6.75	%
Rate to which the cost trend rate is assumed to decline (the ultimate health care cost trend rate)	5.00	%	5.00	%	5.00	%	5.00	%	5.00	%
Year that the rate reaches the ultimate health care cost trend rate	2028		2025		2025		2025		2025

Assumptions

The Company determines the expected long-term rate of return on plan assets by performing a detailed analysis of key economic and market factors driving historical returns for each asset class and formulating a projected return based on factors in the current environment. Factors considered include, but are not limited to, inflation, real economic growth, interest rate yield, interest rate spreads and other valuation measures and market metrics. The expected long-term rate of return for each asset class is then weighted based on the strategic asset allocation approved by the governing body for each plan. The Company’s historical experience with the pension fund asset performance is also considered.

The Company uses the spot rate approach to determine the discount rate utilized to measure the service cost and interest cost components of net periodic pension and other postretirement benefit costs for the U.S. and other selected countries. Under the spot rate approach, the Company calculates service cost and interest cost by applying individual spot rates from the Willis Towers Watson RATE:Link yield curve (based on high-quality corporate bond yields) for each selected country to the separate expected cash flow components of service cost and interest cost. Service cost and interest cost for all other plans are determined on the basis of the single equivalent discount rates derived in determining those plan obligations.

The discount rates utilized to measure the pension and other postretirement obligations of the U.S. plans are based on the yield on high-quality corporate fixed income investments at the measurement date. Future expected actuarially determined cash flows for the Company’s U.S. plans are individually discounted at the spot rates under the Willis Towers Watson U.S. RATE:Link 60-90 corporate yield curve (based on 60th to 90th percentile high-quality corporate bond yields) to arrive at the plan’s obligations as of the measurement date.

The Company utilizes a modified version of the Society of Actuaries’ mortality tables released in 2014 and a modified version of the generational mortality improvement scale released in 2018 for purposes of measuring the U.S. pension and other postretirement obligations, based on an evaluation of the mortality experience of the Company’s pension plans. 

Separation from DowDuPont

As a result of the Company’s separation from DowDuPont in 2019, the number of significant defined benefit pension plans administered by the Company decreased from 45 plans to 35 plans, with approximately $270 million of net unfunded pension liabilities transferred to DowDuPont. Plans administered by other subsidiaries of DowDuPont that were transferred to the Company were not significant. There were no changes in the number of significant other postretirement benefit plans administered by the Company as a result of the separation. Existing Company plans that were significantly impacted by the transfer of active plan participants to DowDuPont were remeasured, resulting in curtailment gains and losses and recognition of special termination benefits.

Summarized information on the Company's pension and other postretirement benefit plans is as follows:

Change in Projected Benefit Obligations, Plan Assets and Funded Status of All Significant Plans	Defined Benefit Pension Plans				Other Postretirement Benefit Plans
In millions	2020		2019		2020		2019
Change in projected benefit obligations:
Benefit obligations at beginning of year	$	32,621	$	29,600	$	1,535	$	1,478
Impact of plans transferred to DowDuPont at separation	—		(331)		—		—
Service cost	399		396		7		8
Interest cost	767		921		40		49
Plan participants' contributions	12		12		—		—
Actuarial changes in assumptions and experience	3,021		3,904		7		148
Benefits paid	(1,569)		(1,684)		(132)		(148)
Plan amendments	8		—		—		—
Acquisitions/divestitures/other 1	(692)		(37)		—		—
Effect of foreign exchange rates	791		14		7		3
Termination benefits/curtailments/settlements 2	(49)		(174)		—		(3)
Benefit obligations at end of year	$	35,309	$	32,621	$	1,464	$	1,535
Change in plan assets:
Fair value of plan assets at beginning of year	$	24,908	$	22,544	$	—	$	—
Impact of plans transferred to DowDuPont at separation	—		(61)		—		—
Actual return on plan assets	2,877		3,790		—		—
Employer contributions	299		266		—		—
Plan participants' contributions	12		12		—		—
Benefits paid	(1,569)		(1,684)		—		—
Other 3	(681)		—		—		—
Effect of foreign exchange rates	571		41		—		—
Settlements	(11)		—		—		—
Fair value of plan assets at end of year	$	26,406	$	24,908	$	—	$	—
Funded status:
U.S. plans with plan assets	$	(5,873)	$	(4,768)	$	—	$	—
Non-U.S. plans with plan assets	(2,222)		(2,207)		—		—
All other plans	(808)		(738)		(1,464)		(1,535)
Funded status at end of year	$	(8,903)	$	(7,713)	$	(1,464)	$	(1,535)
Amounts recognized in the consolidated balance sheets at Dec 31:
Deferred charges and other assets	$	1,007	$	623	$	—	$	—
Accrued and other current liabilities	(54)		(49)		(113)		(128)
Pension and other postretirement benefits - noncurrent	(9,856)		(8,287)		(1,351)		(1,407)
Net amount recognized	$	(8,903)	$	(7,713)	$	(1,464)	$	(1,535)
Pretax amounts recognized in accumulated other comprehensive loss at Dec 31:
Net loss (gain)	$	12,736	$	11,761	$	(129)	$	(147)
Prior service credit	(154)		(177)		—		—
Pretax balance in accumulated other comprehensive loss at end of year	$	12,582	$	11,584	$	(129)	$	(147)

1.The 2020 impact relates primarily to the transfer of benefit obligations in the U.S. through the purchase of annuity contracts from an insurance company. The 2019 impact includes the divestiture of a business with pension benefit obligations of $53 million.

2.The 2020 impact relates to pension plan curtailments of a European plan resulting from the 2020 Restructuring Program and the settlement of certain plan obligations of a U.S. non-qualified pension plan resulting from lump-sum payments. The 2019 impact relates to plan curtailments and associated special termination benefits resulting from the reduction in plan participation due to the separation from DowDuPont.

3.The 2020 impact relates to the purchase of annuity contracts associated with the transfer of benefit obligations to an insurance company.

A significant component of the overall increase in the Company's benefit obligation for the year ended December 31, 2020 was due to the change in weighted-average discount rates, which decreased from 2.81 percent at December 31, 2019 to 2.20 percent at December 31, 2020. A significant component of the overall increase in the Company's benefit obligation for the year ended December 31, 2019 was due to the change in weighted-average discount rates, which decreased from 3.69 percent at December 31, 2018 to 2.81 percent at December 31, 2019.

The accumulated benefit obligation for all significant pension plans was $34.1 billion and $31.4 billion at December 31, 2020 and 2019, respectively.

Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets at Dec 31	2020		2019
In millions
Accumulated benefit obligations	$	29,084	$	26,959
Fair value of plan assets	$	20,130	$	19,571

Pension Plans with Projected Benefit Obligations in Excess of Plan Assets at Dec 31	2020		2019
In millions
Projected benefit obligations	$	30,161	$	28,013
Fair value of plan assets	$	20,251	$	19,677

Net Periodic Benefit Costs for All Significant Plans for the Year Ended Dec 31	Defined Benefit Pension Plans						Other Postretirement Benefit Plans
In millions	2020		2019		2018		2020		2019		2018
Net Periodic Benefit Costs:
Service cost	$	399	$	396	$	520	$	7	$	8	$	12
Interest cost	767		921		886		40		49		45
Expected return on plan assets	(1,658)		(1,679)		(1,644)		—		—		—
Amortization of prior service credit	(19)		(20)		(24)		—		—		—
Amortization of unrecognized (gain) loss	773		574		642		(10)		(20)		(24)
Curtailment/settlement/other 1	9		(27)		—		—		(3)		—
Net periodic benefit costs	$	271	$	165	$	380	$	37	$	34	$	33
Less: discontinued operations	—		21		101		—		—		3
Net periodic benefit costs - continuing operations	$	271	$	144	$	279	$	37	$	34	$	30
Changes in plan assets and benefit obligations recognized in other comprehensive (income) loss:
Net (gain) loss	$	1,753	$	1,606	$	584	$	8	$	145	$	(13)
Prior service cost	8		—		17		—		—		—
Amortization of prior service credit	19		20		24		—		—		—
Amortization of unrecognized gain (loss)	(773)		(574)		(642)		10		20		24
Common control transaction 2	—		(112)		—		—		—		—
Curtailment and settlement gain (loss) 1	(9)		27		—		—		3		—
Total recognized in other comprehensive (income) loss	$	998	$	967	$	(17)	$	18	$	168	$	11
Total recognized in net periodic benefit cost and other comprehensive (income) loss	$	1,269	$	1,132	$	363	$	55	$	202	$	44

1.The 2020 impact relates to pension plan curtailments of a European plan resulting from the 2020 Restructuring Program and the settlement of certain plan obligations of a U.S. non-qualified pension plan resulting from lump-sum payments. The 2019 impact relates to plan curtailments and associated special termination benefits resulting from the reduction in plan participation due to the separation from DowDuPont.

2.The 2019 impact is the result of the separation from DowDuPont.

Except for plan curtailment costs related to the 2020 Restructuring Program, which are included in "Restructuring, goodwill impairment and asset related charges - net" in the consolidated statements of income, non-service cost components of net periodic benefit cost are included in "Sundry income (expense) - net" in the consolidated statements of income. See Notes 6 and 7 for additional information.

Estimated Future Benefit Payments

The estimated future benefit payments of continuing operations, reflecting expected future service, as appropriate, are presented in the following table:

Estimated Future Benefit Payments at Dec 31, 2020	Defined Benefit Pension Plans		Other Postretirement Benefit Plans
In millions
2021	$	1,647	$	114
2022	1,595		103
2023	1,593		102
2024	1,604		101
2025	1,641		100
2026-2030	8,419		449
Total	$	16,499	$	969

Plan Assets

Plan assets consist primarily of equity and fixed income securities of U.S. and foreign issuers, and include alternative investments, such as real estate, private equity and absolute return strategies. Plan assets totaled $26.4 billion at December 31, 2020 and $24.9 billion at December 31, 2019 and included no directly held common stock of Dow Inc.

The Company's investment strategy for the plan assets is to manage the assets in relation to the liability in order to pay retirement benefits to plan participants over the life of the plans. This is accomplished by identifying and managing the exposure to various market risks, diversifying investments across various asset classes and earning an acceptable long-term rate of return consistent with an acceptable amount of risk, while considering the liquidity needs of the plans.

The plans are permitted to use derivative instruments for investment purposes, as well as for hedging the underlying asset and liability exposure and rebalancing the asset allocation. The plans use value-at-risk, stress testing, scenario analysis and Monte Carlo simulations to monitor and manage both the risk within the portfolios and the surplus risk of the plans.

Equity securities primarily include investments in large- and small-cap companies located in both developed and emerging markets around the world. Fixed income securities include investment and non-investment grade corporate bonds of companies diversified across industries, U.S. treasuries, non-U.S. developed market securities, U.S. agency mortgage-backed securities, emerging market securities and fixed income related funds. Alternative investments primarily include investments in real estate, private equity and absolute return strategies. Other significant investment types include various insurance contracts and interest rate, equity, commodity and foreign exchange derivative investments and hedges.

The Company mitigates the credit risk of investments by establishing guidelines with investment managers that limit investment in any single issue or issuer to an amount that is not material to the portfolio being managed. These guidelines are monitored for compliance both by the Company and external managers. Credit risk related to derivative activity is mitigated by utilizing multiple counterparties, collateral support agreements and centralized clearing, where appropriate.

A short-term investment money market fund is utilized as the sweep vehicle for the U.S. plans, which from time to time can represent a significant investment. For one U.S. plan, approximately 31 percent of the liability is covered by a participating group annuity issued by Prudential Insurance Company.

The weighted-average target allocation for plan assets of the Company's pension plans is summarized as follows:

Target Allocation for Plan Assets at Dec 31, 2020	Target Allocation
Asset Category
Equity securities	35	%
Fixed income securities	36
Alternative investments	28
Other investments	1
Total	100	%

Fair value calculations may not be indicative of net realizable value or reflective of future fair values. Furthermore, although the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

For pension plan assets classified as Level 1 measurements (measured using quoted prices in active markets), total fair value is either the price of the most recent trade at the time of the market close or the official close price, as defined by the exchange on which the asset is most actively traded on the last trading day of the period, multiplied by the number of units held without consideration of transaction costs.

For pension plan assets classified as Level 2 measurements, where the security is frequently traded in less active markets, fair value is based on the closing price at the end of the period; where the security is less frequently traded, fair value is based on the price a dealer would pay for the security or similar securities, adjusted for any terms specific to that asset or liability. Market inputs are obtained from well-established and recognized vendors of market data and subjected to tolerance and quality checks. For derivative assets and liabilities, standard industry models are used to calculate the fair value of the various financial instruments based on significant observable market inputs, such as foreign exchange rates, commodity prices, swap rates, interest rates and implied volatilities obtained from various market sources. For other pension plan assets for which observable inputs are used, fair value is derived through the use of fair value models, such as a discounted cash flow model or other standard pricing models.

For pension plan assets classified as Level 3 measurements, total fair value is based on significant unobservable inputs including assumptions where there is little, if any, market activity for the investment.

Certain pension plan assets are held in funds where fair value is based on an estimated net asset value per share (or its equivalent) as of the most recently available fund financial statements which are received on a monthly or quarterly basis. These valuations are reviewed for reasonableness based on applicable sector, benchmark and company performance. Adjustments to valuations are made where appropriate to arrive at an estimated net asset value per share at the measurement date. These funds are not classified within the fair value hierarchy.

The following table summarizes the bases used to measure the Company’s pension plan assets at fair value for the years ended December 31, 2020 and 2019:

Basis of Fair Value Measurements	Dec 31, 2020								Dec 31, 2019
In millions	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	1,298	$	1,103	$	195	$	—	$	754	$	675	$	79	$	—
Equity securities:
U.S. equity securities 1	$	3,934	$	3,911	$	22	$	1	$	3,844	$	3,752	$	91	$	1
Non - U.S. equity securities	5,186		4,213		964		9		4,646		3,819		801		26
Total equity securities	$	9,120	$	8,124	$	986	$	10	$	8,490	$	7,571	$	892	$	27
Fixed income securities:
Debt - government-issued	$	4,998	$	128	$	4,870	$	—	$	4,992	$	197	$	4,795	$	—
Debt - corporate-issued	3,970		553		3,416		1		3,697		607		3,089		1
Debt - asset-backed	103		—		102		1		70		—		69		1
Total fixed income securities	$	9,071	$	681	$	8,388	$	2	$	8,759	$	804	$	7,953	$	2
Alternative investments:
Private markets	$	13	$	—	$	—	$	13	$	11	$	—	$	—	$	11
Real estate	51		51		—		—		25		25		—		—
Derivatives - asset position	697		2		695		—		574		2		572		—
Derivatives - liability position	(594)		(1)		(593)		—		(513)		(2)		(511)		—
Total alternative investments	$	167	$	52	$	102	$	13	$	97	$	25	$	61	$	11
Other investments	$	472	$	22	$	448	$	2	$	411	$	28	$	383	$	—
Subtotal	$	20,128	$	9,982	$	10,119	$	27	$	18,511	$	9,103	$	9,368	$	40
Investments measured at net asset value:
Hedge funds	$	1,350							$	1,595
Private markets	3,135								2,794
Real estate	1,886								2,110
Total investments measured at net asset value	$	6,371							$	6,499
Items to reconcile to fair value of plan assets:
Pension trust receivables 2	$	66							$	70
Pension trust payables 3	(159)								(172)
Total	$	26,406							$	24,908

1.No Dow Inc. common stock was directly held at December 31, 2020 or December 31, 2019.

2.Primarily receivables for investment securities sold.

3.Primarily payables for investment securities purchased.

The following table summarizes the changes in the fair value of Level 3 pension plan assets for the years ended December 31, 2020 and 2019:

Fair Value Measurement of Level 3 Pension Plan Assets	Equity Securities		Fixed Income Securities		Alternative Investments		Other Investments		Total
In millions
Balance at Jan 1, 2019	$	39	$	1	$	1	$	—	$	41
Actual return on assets:
Relating to assets sold during 2019	(2)		—		—		—		(2)
Relating to assets held at Dec 31, 2019	1		—		(14)		—		(13)
Purchases, sales and settlements, net	(11)		1		24		—		14
Balance at Dec 31, 2019	$	27	$	2	$	11	$	—	$	40
Actual return on assets:
Relating to assets sold during 2020	—		—		(11)		—		(11)
Relating to assets held at Dec 31, 2020	(1)		—		8		(1)		6
Purchases, sales and settlements, net	(19)		(1)		5		3		(12)
Transfers into Level 3, net	3		1		—		—		4
Balance at Dec 31, 2020	$	10	$	2	$	13	$	2	$	27

Defined Contribution Plans

U.S. employees may participate in defined contribution plans by contributing a portion of their compensation, which is partially matched by the Company. Defined contribution plans also cover employees in some subsidiaries in other countries, including China, Brazil, Canada, Belgium, Spain and the United Kingdom. Expense of continuing operations recognized for all defined contribution plans was $156 million in 2020, $163 million in 2019 and $186 million in 2018.