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Defined Contribution and Defined Benefit Retirement Plans - Funded Status of Defined Benefit Pension Plans (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Amounts recognized in the balance sheet: |  |  |
Accrued pension costs, noncurrent | $ (128.6) | $ (287.4) |
Pension Plans Defined Benefit [Member] |  |  |
Change in plan assets: |  |  |
Fair value of plan assets at beginning of the year | 486.0 |  |
Fair value of plan assets at end of year | 395.6 | 486.0 |
U S | Pension Plans Defined Benefit [Member] |  |  |
Change in projected benefit obligations (PBO): |  |  |
Benefit obligations at beginning of the year | 17.7 | 19.4 |
Interest cost | 0.4 | 0.5 | $ 0.6
Actuarial losses (gains) | (3.9) | (0.6) |
Settlements |  | (0.5) |
Benefits paid | (1.0) | (1.1) |
Benefit obligations at end of the year | 13.2 | 17.7 | 19.4
Change in plan assets: |  |  |
Fair value of plan assets at beginning of the year | 15.9 | 16.1 |
Actual return on plan assets | (3.2) | 0.5 |
Employer contributions | 0.3 | 0.4 |
Settlements |  | (0.5) |
Benefits paid | (1.0) | (1.1) |
Fair value of plan assets at end of year | 12.0 | 15.9 | 16.1
Funded status | (1.2) | (1.8) |
Amounts recognized in the balance sheet: |  |  |
Accrued pension costs, noncurrent | (1.2) | (1.8) |
Total | (1.2) | (1.8) |
Amount recognized in accumulated other comprehensive loss, Actuarial losses | 9.2 | 9.8 |
Accumulated benefit obligations (ABO) | 13.2 | 17.7 |
Foreign Pension Plans Defined Benefit | Pension Plans Defined Benefit [Member] |  |  |
Change in projected benefit obligations (PBO): |  |  |
Benefit obligations at beginning of the year | 748.1 | 846.7 |
Service cost | 11.3 | 14.7 | 13.3
Interest cost | 10.5 | 8.2 | 10.0
Participant contributions | 1.7 | 2.0 |
Actuarial losses (gains) | (195.8) | (45.4) |
Settlements | (1.2) |  |
Change in currency exchange rates | (50.3) | (55.0) |
Benefits paid | (21.5) | (23.1) |
Benefit obligations at end of the year | 502.8 | 748.1 | 846.7
Change in plan assets: |  |  |
Fair value of plan assets at beginning of the year | 470.1 | 481.8 |
Actual return on plan assets | (49.5) | 17.7 |
Employer contributions | 15.0 | 18.7 |
Participant contributions | 1.7 | 2.0 |
Settlements | (0.3) |  |
Change in currency exchange rates | (31.0) | (27.0) |
Benefits paid | (21.5) | (23.1) |
Fair value of plan assets at end of year | 383.6 | 470.1 | $ 481.8
Funded status | (119.2) | (278.0) |
Amounts recognized in the balance sheet: |  |  |
Noncurrent pension asset | 8.2 | 7.6 |
Accrued pension costs, noncurrent | (127.4) | (285.6) |
Total | (119.2) | (278.0) |
Amount recognized in accumulated other comprehensive loss, Actuarial losses | 85.4 | 233.3 |
Amount recognized in accumulated other comprehensive loss, Prior service cost | 0.4 | 0.4 |
Amount recognized in accumulated other comprehensive loss, Total | 85.8 | 233.7 |
Accumulated benefit obligations (ABO) | $ 488.0 | $ 723.7 |

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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details
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- Definition Amount of payment, which decreases plan assets of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(8) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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