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Retirement Plans (Tables) | 12 Months Ended
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Sep. 30, 2021
Retirement Benefits [Abstract] |
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets | Information for pension plans with accumulated benefit obligations ("ABO") in excess of plan assets (in millions):
|  | September 30, |
|  | 2021 |  | 2020 |
Accumulated benefit obligation |  | $ | 4,402 |  |  | $ | 5,539 |  |
Fair value of plan assets |  | 3,841 |  |  | 4,528 |  |
Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets | Information for pension plans with projected benefit obligations ("PBO") in excess of plan assets (in millions):
|  | September 30, |
|  | 2021 |  | 2020 |
Projected benefit obligation |  | $ | 4,519 |  |  | $ | 5,643 |  |
Fair value of plan assets |  | 3,954 |  |  | 4,570 |  |
Accumulated Postretirement Benefit Obligations in Excess of Plan Assets | Information for postretirement plans with accumulated postretirement benefit obligations ("APBO") in excess of plan assets (in millions):
|  | September 30, |
|  | 2021 |  | 2020 |
Accumulated postretirement benefit obligation |  | $ | 96 |  |  | $ | 105 |  |
Fair value of plan assets |  | 38 |  |  | 34 |  |
Defined Benefit Plan Disclosure [Line Items] |
Plan Assets by Asset Category | The Company’s plan assets at September 30, 2021 and 2020, by asset category, are as follows (in millions):
| Fair Value Measurements Using:
Asset Category | Total as of September 30, 2021 |  | Quoted Prices in Active Markets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
U.S. Pension |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 75 |  |  | $ | — |  |  | $ | 75 |  |  | $ | — |
Equity Securities |  |  |  |  |  |  |
Large-Cap | 185 |  |  | 185 |  |  | — |  |  | — |
Small-Cap | 215 |  |  | 215 |  |  | — |  |  | — |
International - Developed | 182 |  |  | 182 |  |  | — |  |  | — |
International - Emerging | 34 |  |  | 34 |  |  | — |  |  | — |
Fixed Income Securities |  |  |  |  |  |  |
Government | 286 |  |  | 98 |  |  | 188 |  |  | — |
Corporate/Other | 1,279 |  |  | 1,279 |  |  | — |  |  | — |
Total Investments in the Fair Value Hierarchy | 2,256 |  |  | $ | 1,993 |  |  | $ | 263 |  |  | $ | — |
Real Estate Investments Measured at Net Asset Value* | 280 |  |  |  |  |  |  |
Due to Broker | (77) |  |  |  |  |  |  |
Total Plan Assets | $ | 2,459 |  |  |  |  |  |  |
Non-U.S. Pension |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 151 |  |  | $ | 151 |  |  | $ | — |  |  | $ | — |
Equity Securities |  |  |  |  |  |  |
Large-Cap | 197 |  |  | 23 |  |  | 174 |  |  | — |
International - Developed | 128 |  |  | 30 |  |  | 98 |  |  | — |
International - Emerging | 2 |  |  | — |  |  | 2 |  |  | — |
Fixed Income Securities |  |  |  |  |  |  |
Government | 1,123 |  |  | 77 |  |  | 1,046 |  |  | — |
Corporate/Other | 597 |  |  | 320 |  |  | 277 |  |  | — |
Hedge Fund | 27 |  |  | — |  |  | 27 |  |  | — |
Real Estate | 14 |  |  | 14 |  |  | — |  |  | — |
Total Investments in the Fair Value Hierarchy | 2,239 |  |  | $ | 615 |  |  | $ | 1,624 |  |  | $ | — |
Real Estate Investments Measured at Net Asset Value* | 105 |  |  |  |  |  |  |
Total Plan Assets | $ | 2,344 |  |  |  |  |  |  |
Postretirement |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 5 |  |  | $ | 5 |  |  | $ | — |  |  | $ | — |
Equity Securities |  |  |  |  |  |  |
Large-Cap | 24 |  |  | — |  |  | 24 |  |  | — |
Small-Cap | 8 |  |  | — |  |  | 8 |  |  | — |
International - Developed | 19 |  |  | — |  |  | 19 |  |  | — |
International - Emerging | 12 |  |  | — |  |  | 12 |  |  | — |
Fixed Income Securities |  |  |  |  |  |  |
Government | 20 |  |  | — |  |  | 20 |  |  | — |
Corporate/Other | 56 |  |  | — |  |  | 56 |  |  | — |
Commodities | 17 |  |  | — |  |  | 17 |  |  | — |
Real Estate | 11 |  |  | — |  |  | 11 |  |  | — |
Total Plan Assets | $ | 172 |  |  | $ | 5 |  |  | $ | 167 |  |  | $ | — |
| Fair Value Measurements Using:
Asset Category | Total as of September 30, 2020 |  | Quoted Prices in Active Markets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
U.S. Pension |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 36 |  |  | $ | — |  |  | $ | 36 |  |  | $ | — |
Equity Securities |  |  |  |  |  |  |
Large-Cap | 198 |  |  | 198 |  |  | — |  |  | — |
Small-Cap | 255 |  |  | 255 |  |  | — |  |  | — |
International - Developed | 220 |  |  | 220 |  |  | — |  |  | — |
International - Emerging | 33 |  |  | 33 |  |  | — |  |  | — |
Fixed Income Securities |  |  |  |  |  |  |
Government | 382 |  |  | 159 |  |  | 223 |  |  | — |
Corporate/Other | 1,386 |  |  | 1,386 |  |  | — |  |  | — |
Total Investments in the Fair Value Hierarchy | 2,510 |  |  | $ | 2,251 |  |  | $ | 259 |  |  | $ | — |
Real Estate Investments Measured at Net Asset Value* | 276 |  |  |  |  |  |  |
Due to Broker | (80) |  |  |  |  |  |  |
Total Plan Assets | $ | 2,706 |  |  |  |  |  |  |
Non-U.S. Pension |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 178 |  |  | $ | 178 |  |  | $ | — |  |  | $ | — |
Large-Cap | 357 |  |  | 23 |  |  | 334 |  |  | — |
International - Developed | 226 |  |  | 52 |  |  | 174 |  |  | — |
International - Emerging | 4 |  |  | — |  |  | 4 |  |  | — |
Fixed Income Securities |  |  |  |  |  |  |
Government | 704 |  |  | 64 |  |  | 640 |  |  | — |
Corporate/Other | 652 |  |  | 321 |  |  | 331 |  |  | — |
Hedge Fund | 49 |  |  | — |  |  | 49 |  |  | — |
Real Estate | 27 |  |  | 27 |  |  | — |  |  | — |
Total Investments in the Fair Value Hierarchy | 2,197 |  |  | $ | 665 |  |  | $ | 1,532 |  |  | $ | — |
Real Estate Investments Measured at Net Asset Value* | 16 |  |  |  |  |  |  |
Total Plan Assets | $ | 2,213 |  |  |  |  |  |  |
Postretirement |  |  |  |  |  |  |
Cash and Cash Equivalents | $ | 5 |  |  | $ | 5 |  |  | $ | — |  |  | $ | — |
Equity Securities |  |  |  |  |  |  |
Large-Cap | 23 |  |  | — |  |  | 23 |  |  | — |
Small-Cap | 7 |  |  | — |  |  | 7 |  |  | — |
International - Developed | 16 |  |  | — |  |  | 16 |  |  | — |
International - Emerging | 10 |  |  | — |  |  | 10 |  |  | — |
Fixed Income Securities |  |  |  |  |  |  |
Government | 19 |  |  | — |  |  | 19 |  |  | — |
Corporate/Other | 53 |  |  | — |  |  | 53 |  |  | — |
Commodities | 12 |  |  | — |  |  | 12 |  |  | — |
Real Estate | 8 |  |  | — |  |  | 8 |  |  | — |
Total Plan Assets | $ | 153 |  |  | $ | 5 |  |  | $ | 148 |  |  | $ | — |
* The fair value of certain investments in real estate do not have a readily determinable fair value and requires the fund managers to independently arrive at fair value by calculating net asset value ("NAV") per share. In order to calculate NAV per share, the fund managers value the real estate investments using any one, or a combination of, the following methods: independent third party appraisals, discounted cash flow analysis of net cash flows projected to be generated by the investment and recent sales of comparable investments. Assumptions used to revalue the properties are updated every quarter. Due to the fact that the fund managers calculate NAV per share, the Company utilizes a practical expedient for measuring the fair value of its real-estate investments, as provided for under ASC 820, "Fair Value Measurement." In applying the practical expedient, the Company is not required to further adjust the NAV provided by the fund manager in order to determine the fair value of its investment as the NAV per share is calculated in a manner consistent with the measurement principles of ASC 946, "Financial Services - Investment Companies," and as of the Company's measurement date. The Company believes this is an appropriate methodology to obtain the fair value of these assets. For the component of the real estate portfolio under development, the investments are carried at cost until they are completed and valued by a third party appraiser. In accordance with ASU No. 2015-07, "Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent)," investments for which fair value is measured using the net asset value per share practical expedient should be disclosed separate from the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of total plan assets to the amounts presented in the notes to consolidated financial statements.
Accumulated Benefit Obligations and Reconciliations of Changes in Projected Benefit Obligation, Changes in Plan Assets and Funded Status | The table that follows contains the ABO and reconciliations of the changes in the PBO, the changes in plan assets and the funded status (in millions):
| Pension Benefits |  | Postretirement Benefits
| U.S. Plans |  | Non-U.S. Plans |
September 30, | 2021 |  | 2020 |  | 2021 |  | 2020 |  | 2021 |  | 2020
Accumulated Benefit Obligation | $ | 2,629 |  |  | $ | 3,217 |  |  | $ | 2,540 |  |  | $ | 2,627 |  |  | $ | — |  |  | $ | — |
Change in Projected Benefit Obligation |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation at beginning of year | $ | 3,217 |  |  | $ | 3,115 |  |  | $ | 2,726 |  |  | $ | 2,652 |  |  | $ | 146 |  |  | $ | 174 |
Service cost | — |  |  | — |  |  | 27 |  |  | 25 |  |  | 1 |  |  | 1 |
Interest cost | 47 |  |  | 67 |  |  | 32 |  |  | 36 |  |  | 2 |  |  | 4 |
Plan participant contributions | — |  |  | — |  |  | 3 |  |  | 3 |  |  | 3 |  |  | 4 |
Other divestitures | — |  |  | — |  |  | — |  |  | (2) |  |  | — |  |  | — |
Actuarial (gain) loss | (52) |  |  | 298 |  |  | (103) |  |  | 7 |  |  | (13) |  |  | (3) |
Amendments made during the year | — |  |  | — |  |  | (6) |  |  | — |  |  | — |  |  | (13) |
Benefits and settlements paid | (583) |  |  | (263) |  |  | (124) |  |  | (109) |  |  | (17) |  |  | (21) |
Estimated subsidy received | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1 |
Curtailment | — |  |  | — |  |  | (3) |  |  | (8) |  |  | — |  |  | — |
Other | — |  |  | — |  |  | (2) |  |  | 4 |  |  | — |  |  | — |
Currency translation adjustment | — |  |  | — |  |  | 75 |  |  | 118 |  |  | 1 |  |  | (1) |
Projected benefit obligation at end of year | $ | 2,629 |  |  | $ | 3,217 |  |  | $ | 2,625 |  |  | $ | 2,726 |  |  | $ | 123 |  |  | $ | 146 |
Change in Plan Assets |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year | $ | 2,706 |  |  | $ | 2,736 |  |  | $ | 2,213 |  |  | $ | 2,098 |  |  | $ | 153 |  |  | $ | 163 |
Actual return on plan assets | 333 |  |  | 228 |  |  | 125 |  |  | 75 |  |  | 30 |  |  | 4 |
Employer and employee contributions | 3 |  |  | 5 |  |  | 65 |  |  | 56 |  |  | 6 |  |  | 7 |
Benefits paid | (108) |  |  | (112) |  |  | (79) |  |  | (73) |  |  | (17) |  |  | (21) |
Settlement payments | (475) |  |  | (151) |  |  | (45) |  |  | (36) |  |  | — |  |  | — |
Other | — |  |  | — |  |  | (1) |  |  | — |  |  | — |  |  | — |
Currency translation adjustment | — |  |  | — |  |  | 66 |  |  | 93 |  |  | — |  |  | — |
Fair value of plan assets at end of year | $ | 2,459 |  |  | $ | 2,706 |  |  | $ | 2,344 |  |  | $ | 2,213 |  |  | $ | 172 |  |  | $ | 153 |
Funded status | $ | (170) |  |  | $ | (511) |  |  | $ | (281) |  |  | $ | (513) |  |  | $ | 49 |  |  | $ | 7 |
Amounts recognized in the statement of financial position consist of:
Prepaid benefit cost | $ | 44 |  |  | $ | 32 |  |  | $ | 79 |  |  | $ | 29 |  |  | $ | 107 |  |  | $ | 78 |
Accrued benefit liability | (214) |  |  | (543) |  |  | (360) |  |  | (542) |  |  | (58) |  |  | (71) |
Net amount recognized | $ | (170) |  |  | $ | (511) |  |  | $ | (281) |  |  | $ | (513) |  |  | $ | 49 |  |  | $ | 7 |
Weighted Average Assumptions (1) |  |  |  |  |  |  |  |  |  |  |
Discount rate (2) | 2.50 | % |  | 2.25 | % |  | 1.80 | % |  | 1.35 | % |  | 2.30 | % |  | 1.90 | %
Rate of compensation increase | N/A |  | N/A |  | 2.85 | % |  | 2.75 | % |  | N/A |  | N/A
Interest crediting rate | N/A |  | N/A |  | 1.45 | % |  | 1.50 | % |  | N/A |  | N/A
(1) Plan assets and obligations are determined based on a September 30 measurement date at September 30, 2021 and 2020. (2) The Company considers the expected benefit payments on a plan-by-plan basis when setting assumed discount rates. As a result, the Company uses different discount rates for each plan depending on the plan jurisdiction, the demographics of participants and the expected timing of benefit payments. For the U.S. pension and postretirement plans, the Company uses a discount rate provided by an independent third party calculated based on an appropriate mix of high quality bonds. For the non-U.S. pension and postretirement plans, the Company consistently uses the relevant country specific benchmark indices for determining the various discount rates. The Company has elected to utilize a full yield curve approach in the estimation of service and interest components of net periodic benefit cost (credit) for pension and other postretirement for plans that utilize a yield curve approach. The full yield curve approach applies the specific spot rates along the yield curve used in the determination of the benefit obligation to the relevant projected cash flows. The fiscal 2021 net actuarial gains related to changes in the benefit obligation were the result of the increase in the discount rates globally. The fiscal 2020 net actuarial losses related to changes in the benefit obligation were primarily driven by the decrease in the U.S. discount rates.
Components of Net Periodic Benefit Cost | The table that follows contains the components of net periodic benefit costs, which are primarily recorded in selling, general and administrative expenses in the consolidated statements of income (in millions):
| Pension Benefits |  | Postretirement Benefits
| U.S. Plans |  | Non-U.S. Plans |
Year ended September 30, | 2021 |  | 2020 |  | 2019 |  | 2021 |  | 2020 |  | 2019 |  | 2021 |  | 2020 |  | 2019
Components of Net Periodic Benefit Cost (Credit): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | — |  |  | $ | — |  |  | $ | 8 |  |  | $ | 27 |  |  | $ | 25 |  |  | $ | 22 |  |  | $ | 1 |  |  | $ | 1 |  |  | $ | 1 |
Interest cost | 47 |  |  | 67 |  |  | 108 |  |  | 32 |  |  | 36 |  |  | 54 |  |  | 2 |  |  | 4 |  |  | 6 |
Expected return on plan assets | (171) |  |  | (180) |  |  | (199) |  |  | (112) |  |  | (111) |  |  | (105) |  |  | (8) |  |  | (9) |  |  | (9) |
Net actuarial (gain) loss | (214) |  |  | 244 |  |  | 361 |  |  | (115) |  |  | 43 |  |  | 236 |  |  | (35) |  |  | 2 |  |  | 17 |
Amortization of prior service cost (credit) | — |  |  | — |  |  | — |  |  | 1 |  |  | 1 |  |  | — |  |  | (4) |  |  | (3) |  |  | — |
Curtailment gain | — |  |  | — |  |  | — |  |  | (3) |  |  | (8) |  |  | — |  |  | — |  |  | — |  |  | — |
Settlement (gain) loss | — |  |  | 6 |  |  | 13 |  |  | (1) |  |  | — |  |  | 4 |  |  | — |  |  | — |  |  | — |
Special termination benefit cost | — |  |  | — |  |  | — |  |  | 2 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Net periodic benefit cost (credit) | (338) |  |  | 137 |  |  | 291 |  |  | (169) |  |  | (14) |  |  | 211 |  |  | (44) |  |  | (5) |  |  | 15 |
Net periodic benefit cost related to discontinued operations | — |  |  | — |  |  | (2) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Net periodic benefit cost (credit) included in continuing operations | $ | (338) |  |  | $ | 137 |  |  | $ | 289 |  |  | $ | (169) |  |  | $ | (14) |  |  | $ | 211 |  |  | $ | (44) |  |  | $ | (5) |  |  | $ | 15 |
Expense Assumptions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.25 | % |  | 2.95 | % |  | 4.10 | % |  | 1.35 | % |  | 1.50 | % |  | 2.45 | % |  | 1.90 | % |  | 2.65 | % |  | 3.80 | %
Expected return on plan assets | 6.50 | % |  | 6.90 | % |  | 7.10 | % |  | 4.90 | % |  | 5.20 | % |  | 5.20 | % |  | 5.30 | % |  | 5.70 | % |  | 5.65 | %
Rate of compensation increase | N/A |  | N/A |  | 3.50 | % |  | 2.75 | % |  | 2.80 | % |  | 2.95 | % |  | N/A |  | N/A |  | N/A
Interest crediting rate | N/A |  | N/A |  | N/A |  | 1.50 | % |  | 1.50 | % |  | 1.55 | % |  | N/A |  | N/A |  | N/A
Pension Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Projected Benefit Payments from Plans | In fiscal 2021, total employer contributions to the defined benefit pension plans were $65 million, none of which were voluntary contributions made by the Company. The Company expects to contribute approximately $42 million in cash to its defined benefit pension plans in fiscal 2022. Projected benefit payments from the plans as of September 30, 2021 are estimated as follows (in millions):
2022 | $ | 329 |
2023 | 298 |
2024 | 285 |
2025 | 280 |
2026 | 284 |
2027 - 2031 | 1,387 |
Postretirement Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Projected Benefit Payments from Plans | In fiscal 2021, total employer contributions to the postretirement plans were $3 million. The Company expects to contribute approximately $3 million in cash to its postretirement plans in fiscal 2022 for continuing operations. Projected benefit payments from the plans as of September 30, 2021 are estimated as follows (in millions):
2022 | $ | 11 |
2023 | 11 |
2024 | 11 |
2025 | 10 |
2026 | 10 |
2027 - 2031 | 38 |

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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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