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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items] |
Defined contribution plans | We recorded the following contributions to the defined contribution plans (in millions):
| For the Years Ended December 31,
| 2020 |  | 2019 |  | 2018
Contributions to defined contribution plans | $ | 17.8 |  |  | $ | 19.1 |  |  | $ | 18.8 |
Pension and postretirement benefit plans recognized in financial statements | The following tables set forth amounts recognized in our financial statements and the plans’ funded status for our pension and post-retirement benefit plans (dollars in millions):
| Pension Benefits |  |
| 2020 |  | 2019 |  |  |  |
Accumulated benefit obligation | $ | 273.2 |  |  | $ | 237.3 |  |  |  |  |
Changes in projected benefit obligation: |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | 241.5 |  |  | $ | 371.9 |  |  |  |  |
Service cost | 5.5 |  |  | 4.9 |  |  |  |  |
Interest cost | 6.6 |  |  | 10.2 |  |  |  |  |
Amendments | 0.1 |  |  | — |  |  |  |  |
Actuarial (gain) loss | 27.2 |  |  | 38.9 |  |  |  |  |
Effect of exchange rates | 2.2 |  |  | 1.1 |  |  |  |  |
Settlements | (1.3) |  |  | (173.5) |  |  |  |  |
Benefits paid | (5.6) |  |  | (12.0) |  |  |  |  |
Benefit obligation at end of year | $ | 276.2 |  |  | $ | 241.5 |  |  |  |  |
Changes in plan assets: |  |  |  |  |  |  |
Fair value of plan assets at beginning of year | $ | 154.3 |  |  | $ | 291.0 |  |  |  |  |
Actual gain (loss) return on plan assets | 27.3 |  |  | 45.7 |  |  |  |  |
Employer contributions | 3.4 |  |  | 1.8 |  |  |  |  |
Effect of exchange rates | 1.6 |  |  | 1.3 |  |  |  |  |
Plan settlements | (1.3) |  |  | (173.5) |  |  |  |  |
Benefits paid | (5.6) |  |  | (12.0) |  |  |  |  |
Fair value of plan assets at end of year | 179.7 |  |  | 154.3 |  |  |  |  |
Funded status / net amount recognized | $ | (96.5) |  |  | $ | (87.2) |  |  |  |  |
Net amount recognized consists of: |  |  |  |  |  |  |
Non-current assets | $ | 5.0 |  |  | $ | 3.5 |  |  |  |  |
Current liability | (9.0) |  |  | (3.3) |  |  |  |  |
Non-current liability | (92.5) |  |  | (87.4) |  |  |  |  |
Net amount recognized | $ | (96.5) |  |  | $ | (87.2) |  |  |  |  |
Schedule of non-current pension liability plan |
| For the Years Ended December 31,
| 2020 |  | 2019
Pension plans with a benefit obligation in excess of plan assets: |  |  |
Projected benefit obligation | $ | 236.6 |  |  | $ | 204.5 |
Accumulated benefit obligation | 233.3 |  |  | 200.5 |
Fair value of plan assets | 135.2 |  |  | 113.9 |
Components of net periodic benefit cost | Our U.S.-based pension plans comprised approximately 82% of the projected benefit obligation and 75% of plan assets as of December 31, 2020.
| Pension Benefits |  |
| 2020 |  | 2019 |  | 2018 |  |  |  |  |  |
Components of net periodic benefit cost as of December 31: |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 5.5 |  |  | $ | 4.9 |  |  | $ | 5.3 |  |  |  |  |  |  |
Interest cost | 6.6 |  |  | 10.2 |  |  | 12.3 |  |  |  |  |  |  |
Expected return on plan assets | (8.2) |  |  | (13.4) |  |  | (18.8) |  |  |  |  |  |  |
Amortization of prior service costs | 0.2 |  |  | 0.1 |  |  | 0.1 |  |  |  |  |  |  |
Recognized actuarial loss | 5.8 |  |  | 5.6 |  |  | 9.2 |  |  |  |  |  |  |
Settlements | 0.6 |  |  | 99.2 |  |  | 0.4 |  |  |  |  |  |  |
Other | — |  |  | (0.5) |  |  | 0.3 |  |  |  |  |  |  |
Net periodic benefit cost | $ | 10.5 |  |  | $ | 106.1 |  |  | $ | 8.8 |  |  |  |  |  |  |
Summary of amounts recognized in AOCI in our financial statements | The following table sets forth amounts recognized in AOCL and Other comprehensive income (loss) in our financial statements for 2020 and 2019 (in millions):
| Pension Benefits |  |
| 2020 |  | 2019 |  |  |  |
Amounts recognized in AOCL: |  |  |  |  |  |  |
Prior service costs | $ | (0.7) |  |  | $ | (0.8) |  |  |  |  |
Actuarial loss | (103.8) |  |  | (101.6) |  |  |  |  |
Subtotal | (104.5) |  |  | (102.4) |  |  |  |  |
Deferred taxes | 25.6 |  |  | 24.7 |  |  |  |  |
Net amount recognized | $ | (78.9) |  |  | $ | (77.7) |  |  |  |  |
Changes recognized in other comprehensive loss: |  |  |  |  |  |  |
Current year actuarial loss (gain) | 8.1 |  |  | (5.1) |  |  |  |  |
Effect of exchange rates | 0.5 |  |  | 0.5 |  |  |  |  |
Amortization of prior service costs | (0.2) |  |  | (0.1) |  |  |  |  |
Amortization of actuarial loss, including settlements | (6.4) |  |  | (93.1) |  |  |  |  |
Total recognized in other comprehensive income (loss) | $ | 2.0 |  |  | $ | (97.8) |  |  |  |  |
Total recognized in net periodic benefit cost and other comprehensive income | $ | 12.5 |  |  | $ | 8.3 |  |  |  |  |
Summary of health care cost trend rates | The following table sets forth the healthcare trend rate assumptions used:
| 2020 |  | 2019
Assumed health care cost trend rates as of December 31: |  |  |
Health care cost trend rate assumed for next year | 6.00 | % |  | 6.50 | %
Rate to which the cost rate is assumed to decline (the ultimate trend rate) | 5.00 | % |  | 5.00 | %
Year that the rate reaches the ultimate trend rate | 2023 |  | 2022
Summary of expected future benefit payments | Expected future benefit payments are shown in the table below (in millions):
| For the Years Ended December 31,
| 2021 |  | 2022 |  | 2023 |  | 2024 |  | 2025 |  | 2026-2030
Pension benefits | $ | 12.0 |  |  | $ | 5.8 |  |  | $ | 6.8 |  |  | $ | 11.9 |  |  | $ | 33.1 |  |  | $ | 75.1 |
Summary of weighted-average asset allocations | Our U.S. pension plans’ weighted-average asset allocations as of December 31, 2020 and 2019, by asset category, were as follows:
| Plan Assets as of December 31,
Asset Category: | 2020 |  | 2019
U.S. equity | 34.8 | % |  | 44.6 | %
International equity | 17.0 | % |  | 7.3 | %
Fixed income | 48.0 | % |  | 48.0 | %
Money market/cash | 0.2 | % |  | 0.1 | %
Total | 100.0 | % |  | 100.0 | %
Summary of target allocation percentage of assets | Our U.S. pension plans’ assets were invested according to the following targets:
Asset Category: | Target
U.S. equity | 44.0 | %
International equity | 6.0 | %
Fixed income | 50.0 | %
Summary of fair value of pension plan asset, by asset category | The fair values of our pension plan assets, by asset category, were as follows (in millions):
| Fair Value Measurements as of December 31, 2020
| Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total
Asset Category: |  |  |  |  |  |  |
Cash and cash equivalents | $ | 0.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 0.4 |
Commingled pools / Collective Trusts: |  |  |  |  |  |  |
U.S. equity (1) | — |  |  | 47.0 |  |  | — |  |  | 47.0 |
International equity (2) | — |  |  | 23.0 |  |  | — |  |  | 23.0 |
Fixed income (3) | — |  |  | 64.9 |  |  | — |  |  | 64.9 |
Balanced pension trust: (4) |  |  |  |  |  |  |
International equity | — |  |  | 5.1 |  |  | — |  |  | 5.1 |
Fixed income | — |  |  | 14.1 |  |  | — |  |  | 14.1 |
Pension fund: |  |  |  |  |  |  |
Fixed income (6) | — |  |  | 25.2 |  |  | — |  |  | 25.2 |
Total | $ | 0.4 |  |  | $ | 179.3 |  |  | $ | — |  |  | $ | 179.7 |
| Fair Value Measurements as of December 31, 2019
| Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total
Asset Category: |  |  |  |  |  |  |
Cash and cash equivalents | $ | 0.2 |  |  | $ | — |  |  | $ | — |  |  | $ | 0.2 |
Commingled pools / Collective Trusts: |  |  |  |  |  |  |
U.S. equity (1) | — |  |  | 50.8 |  |  | — |  |  | 50.8 |
International equity (2) | — |  |  | 8.3 |  |  | — |  |  | 8.3 |
Fixed income (3) | — |  |  | 54.6 |  |  | — |  |  | 54.6 |
Balanced pension trust: (4) |  |  |  |  |  |  |
International equity | — |  |  | 4.8 |  |  | — |  |  | 4.8 |
Fixed income | — |  |  | 13.6 |  |  | — |  |  | 13.6 |
Pension fund: |  |  |  |  |  |  |
Fixed income (5) | — |  |  | 22.0 |  |  | — |  |  | 22.0 |
Total | $ | 0.2 |  |  | $ | 154.1 |  |  | $ | — |  |  | $ | 154.3 |
Summary of additional information about asset measured at net asset value per share | Additional information about assets measured at Net Asset Value (“NAV”) per share (in millions):
| As of December 31, 2020
| Fair Value |  | Redemption Frequency (if currently eligible) |  | Redemption Notice Period
Asset Category: |  |  |  |  |
Commingled pools / Collective Trusts: |  |  |  |  |
U.S. equity (1) | $ | 47.0 |  |  | Daily |  | 5 days
International equity (2) | 23.0 |  |  | Daily |  | 5 days
Fixed income (3) | 64.9 |  |  | Daily |  | 5-15 days
Balanced pension trust: (4) |  |  |  |  |
International equity | 5.1 |  |  | Daily |  | 3-5 days
Fixed income | 14.1 |  |  | Daily |  | 3-5 days
Pension fund: |  |  |  |  |
Fixed income (5) | 25.2 |  |  | Daily |  | 3 days
Total | $ | 179.3 |  |  |  |  |
| As of December 31, 2019
| Fair Value |  | Redemption Frequency (if currently eligible) |  | Redemption Notice Period
Asset Category: |  |  |  |  |
Commingled pools / Collective Trusts: |  |  |  |  |
U.S. equity (1) | $ | 50.8 |  |  | Daily |  | 5 days
International equity (2) | 8.3 |  |  | Daily |  | 5 days
Fixed income (3) | 54.6 |  |  | Daily |  | 5-15 days
Balanced pension trust: (4) |  |  |  |  |
International equity | 4.8 |  |  | Daily |  | 3-5 days
Fixed income | 13.6 |  |  | Daily |  | 3-5 days
Pension fund: |  |  |  |  |
Fixed income (5) | 22.0 |  |  | Daily |  | 1-3 days
Total | $ | 154.1 |  |  |  |  |
(1) | This category includes investments primarily in U.S. equity securities that include large, mid and small capitalization companies.
(2) | This category includes investments primarily in international equity securities that include large, mid and small capitalization companies in large developed markets as well as emerging markets equities.
(3) | This category includes investments in U.S. investment grade and high yield fixed income securities, international fixed income securities and emerging markets fixed income securities.
(4) | The investment objectives of the plan are to provide long-term capital growth and income by investing primarily in a well-diversified, balanced portfolio of Canadian common stocks, bonds and money market securities. The plan also holds a portion of its assets in international equities, a portion of which may be invested in U.S. securities.
(5) | This category includes investments in U.K. government index-linked securities (index-linked gilts) that have maturity periods of 5 years or longer with a derivatives overlay and investment grade corporate bonds denominated in sterling.
UNITED STATES |
Defined Benefit Plan Disclosure [Line Items] |
Weighted-average assumptions used to determine Benefit Obligations and Net Periodic Benefit Cost for the U.S. and Non-U.S.-based plans | The following tables set forth the weighted-average assumptions used to determine Benefit obligations and Net periodic benefit cost for the U.S.-based plans in 2020 and 2019:
|  | Pension Benefits |  |
|  | 2020 |  | 2019 |  |  |  |
Weighted-average assumptions used to determine benefit obligations as of December 31: |  |  |  |  |  |  |  |
Discount rate |  | 2.40 | % |  | 3.19 | % |  |  |  |
Rate of compensation increase |  | 4.13 | % |  | 4.23 | % |  |  |  |
| Pension Benefits |  |
| 2020 |  | 2019 |  | 2018 |  |  |  |  |  |
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31: |  |  |  |  |  |  |  |  |  |  |
Discount rate - service cost | 2.89 | % |  | 3.96 | % |  | 3.48 | % |  |  |  |  |  |
Discount rate - interest cost | 2.99 | % |  | 3.67 | % |  | 3.22 | % |  |  |  |  |  |
Expected long-term return on plan assets | 6.50 | % |  | 6.50 | % |  | 6.50 | % |  |  |  |  |  |
Rate of compensation increase | 4.23 | % |  | 4.23 | % |  | 4.23 | % |  |  |  |  |  |
Foreign Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Weighted-average assumptions used to determine Benefit Obligations and Net Periodic Benefit Cost for the U.S. and Non-U.S.-based plans | The following tables set forth the weighted-average assumptions used to determine Benefit obligations and Net periodic benefit cost for the non-U.S.-based plans in 2020 and 2019:
| Pension Benefits
| 2020 |  | 2019
Weighted-average assumptions used to determine benefit obligations as of December 31: |  |  |
Discount rate | 1.48 | % |  | 2.15 | %
Rate of compensation increase | 3.17 | % |  | 3.20 | %
| Pension Benefits
| 2020 |  | 2019 |  | 2018
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31: |  |  |  |  |
Discount rate - service cost | 0.73 | % |  | 1.60 | % |  | 1.32 | %
Discount rate - interest cost | 2.30 | % |  | 2.98 | % |  | 2.67 | %
Expected long-term return on plan assets | 3.31 | % |  | 3.92 | % |  | 4.19 | %
Rate of compensation increase | 3.20 | % |  | 3.77 | % |  | 3.62 | %

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