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Pension Plans, Postretirement and Other Employee Benefits (Tables)
 12 Months Ended
Dec. 31, 2021
Retirement Benefits [Abstract]  
Amounts Recognized in Balance Sheets for Pension Plans and Postretirement Benefit Plan
The measurement date for all defined benefit plans is December 31. The following provides a reconciliation of the plans’ benefit obligations, plan assets, and funded status at December 31, 2021 and 2020:
 Pension PlansOther Postretirement Benefits Plans
U.S.Non-U.S.
 202120202021202020212020
Change in benefit obligation:
Benefit obligation, beginning of year$1,383 $1,320 $1,122 $1,048 $237 $300 
Service cost2 1 26 25 — — 
Interest cost31 41 17 18 6 9 
Settlement— — (5)(17)— — 
Administrative expenses/taxes paid— — (5)(5)— — 
Plan amendments— 1 — — (20)(59)
Actuarial (gain)/loss(45)114 (39)28 (16)5 
Other— — — 2 — — 
Benefits paid(93)(94)(43)(44)(18)(18)
Participants’ contributions— — 1 1 1 — 
Currency rate conversion and other— — (50)66 — — 
Benefit obligation, end of year1,278 1,383 1,024 1,122 190 237 
Change in plan assets:
Fair value of plan assets, beginning of year1,145 1,062 571 523 — — 
Settlement— — (5)(17)— — 
Actual return on plan assets154 126 24 47 — — 
Administrative expenses/taxes paid— — (5)(5)— — 
Employer contributions4 51 41 42 17 18 
Participants’ contributions— — 1 1 1 — 
Benefits paid(93)(94)(43)(44)(18)(18)
Other— — — 2 — — 
Currency rate conversion and other— — (13)22 — — 
Fair value of plan assets, end of year1,210 1,145 571 571 — — 
Funded status of the plans$(68)$(238)$(453)$(551)$(190)$(237)
Schedule of Amounts Recognized in Balance Sheet
Amounts recognized on the consolidated balance sheets consist of the following at December 31, 2021 and 2020:
 Pension PlansOther Postretirement Benefits Plans
U.S.Non-U.S.
 202120202021202020212020
Noncurrent assets$— $— $75 $37 $— $— 
Current liabilities(3)(2)(17)(18)(18)(23)
Noncurrent liabilities (a)
(65)(236)(511)(570)(172)(214)
$(68)$(238)$(453)$(551)$(190)$(237)
(a) Included in “Pension and postretirement benefits” within the consolidated balance sheets are postemployment benefits of $82 million and $81 million at December 31, 2021 and 2020 which are not included in the tables above.
Amounts Recognized in Accumulated Other Comprehensive Loss for Pension Benefits
Amounts recognized in accumulated other comprehensive loss for pension and postretirement benefits, pre-tax, consist of the following components at December 31, 2021 and 2020:
 Pension PlansOther Postretirement Benefits Plans
U.S.Non-U.S.
 202120202021202020212020
Actuarial (gain) loss$144 $290 $108 $168 $14 $32 
Prior service cost/(credit)1 1 3 4 (109)(99)
Total$145 $291 $111 $172 $(95)$(67)
Projected Benefit Obligation Accumulated Benefit Obligation and Fair Value of Plan Assets for all Pension Plans
Information for defined benefit plans with projected benefit obligations in excess of plan assets:
 Pension PlansOther Postretirement Benefits Plans
 20212020
 U.S.Non-U.S.U.S.Non-U.S.20212020
Projected benefit obligation$1,278 $645 $1,383 $743 $190 $237 
Fair value of plan assets$1,210 $117 $1,145 $155 $— $— 

Information for pension plans with accumulated benefit obligations in excess of plan assets:
 December 31, 2021December 31, 2020
 U.S.Non-U.S.U.S.Non-U.S.
Projected benefit obligation$1,278 $602 $1,383 $696 
Accumulated benefit obligation$1,278 $561 $1,383 $654 
Fair value of plan assets$1,210 $81 $1,145 $118 
Components of Net Periodic Benefit Cost
Net periodic pension and postretirement benefits costs for the years ended December 31, 2021, 2020 and 2019, consist of the following components:
Pension PlansOther Postretirement
Benefits Plans
U.S.Non-U.S.
 202120202019202120202019202120202019
Service cost $2 $1 $2 $26 $25 $24 $— $— $1 
Interest cost31 41 53 17 18 24 6 9 13 
Expected return on plan assets(65)(64)(67)(16)(17)(19)— — — 
Curtailment loss (gain)— — — — — — — (21)(7)
Settlement loss— 1 6 1 6 1 — — — 
Net amortization:
Actuarial loss12 6 5 8 8 5 2 2 4 
Prior service cost (credit)— — — 1 — 1 (10)(7)(8)
Net periodic costs$(20)$(15)$(1)$37 $40 $36 $(2)$(17)$3 
Assumptions Used in Accounting for Pension Plans
The following assumptions were used in the accounting for the pension and other postretirement benefits plans for the years ended December 31, 2021, 2020, and 2019:
Pension PlansOther Postretirement
Benefits Plans
U.S.Non-U.S.
 202120202019202120202019202120202019
Weighted average assumptions used to determine benefit obligations:
Discount rate2.8 %2.3 %3.2 %1.9 %1.5 %1.7 %2.9 %2.5 %3.2 %
Rate of compensation increasen/an/an/a1.9 %1.8 %2.0 %n/an/an/a
Interest crediting rate4.2 %4.2 %4.2 %1.8 %1.8 %1.8 %n/an/an/a
Weighted average assumptions used to determine net periodic benefit cost:
Discount rate2.3 %3.2 %4.2 %1.5 %1.7 %2.6 %2.5 %3.2 %4.3 %
Expected long-term return on plan assets6.2 %6.3 %6.3 %2.9 %3.5 %4.0 %n/an/an/a
Rate of compensation increasen/an/an/a1.8 %2.0 %2.0 %n/an/an/a
Interest crediting rate4.2 %4.2 %4.2 %1.8 %1.8 %1.8 %n/an/an/a
Estimated Pension Plan Benefit Payments
Estimated future benefit payments are as follows:
Pension PlansOther Postretirement Benefits Plans
YearU.S.Non-U.S.
2022$92 $51 $18 
2023$93 $48 $17 
2024$89 $46 $16 
2025$87 $48 $15 
2026$85 $50 $14 
2027-2031$380 $272 $61 
Schedule of Health Care Cost Trend Rate
The weighted average assumed health care cost trend rate used in determining next year’s postretirement health care benefits are as follows:
 Other Postretirement Benefits Plans
 202120202019
Initial health care cost trend rate6.1 %6.3 %6.6 %
Ultimate health care cost trend rate4.9 %4.9 %4.9 %
Year ultimate health care cost trend rate reached202720272027
Pension Plan Assets Invested
Pension plan assets were invested in the following classes of securities:
 Percentage of Fair Market Value
 December 31, 2021
 U.S.Non-U.S.
Equity securities53 %14 %
Fixed income securities41 %59 %
Insurance contracts— %20 %
Other6 %7 %
Plan Assets using Fair Value Hierarchy
The following table presents the Company’s defined benefit plan assets measured at fair value by asset class: 
 Fair Value Level at December 31, 2021
 U.S.Non-U.S.
Asset CategoryLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Investments with registered investment companies:
Equity securities$488 $— $— $488 $1 $— $— $1 
Fixed income securities106 — — 106 11 — — 11 
Real estate and other— — — — — — — — 
Equity securities4 — — 4 4 38 — 42 
Debt securities:
Corporate and other— 163 — 163 — — — — 
Government115 46 — 161 4 176 — 180 
Real Estate and other— — — — 1 29 — 30 
Insurance contracts— — — — — — 113 113 
Hedge funds— — 11 11 — — — — 
Cash and equivalents62 — — 62 12 — — 12 
Total$775 $209 $11 $995 $33 $243 $113 $389 
Plan assets measured at net asset value
Equity securities$149 $31 
Government debt securities— 103 
Corporate and other debt securities66 48 
Total plan assets measured at net asset value215 182 
Net plan assets$1,210 $571 
 Fair Value Level at December 31, 2020
 U.S.Non-U.S.
Asset CategoryLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Investments with registered investment companies:
Equity securities$374 $— $— $374 $1 $— $— $1 
Fixed income securities140 — — 140 12 — — 12 
Real estate and other21 — — 21 — — — — 
Equity securities242 — — 242 21 42 — 63 
Debt securities:
Corporate and other— 13 — 13 10 — — 10 
Government25 39 — 64 14 189 — 203 
Real Estate and other— — — — 1 30 — 31 
Insurance contracts— — — — — — 113 113 
Hedge funds— — 17 17 — — — — 
Cash and equivalents80 — — 80 5 — — 5 
Total$882 $52 $17 $951 $64 $261 $113 $438 
Plan assets measured at net asset value
Equity securities$137 $84 
Government debt securities— 36 
Corporate and other debt securities57 13 
Total plan assets measured at net asset value194 133 
Net plan assets$1,145 $571 
Significant Concentrations of Risk
The following table contains information about significant concentrations of risk, including all individual assets that make up more than 5% of the total assets and any direct investments in Tenneco stock:
Asset CategoryFair Value 
Level		Fair ValuePercentage of
Total Assets
2021:
Tenneco stock1 $4 0.2 %
2020:
Tenneco stock1 $4 0.2 %