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Pension, Health Care and Postretirement Benefits Other Than Pensions - Summary of the Obligations, Plan Assets and Assumptions Used for Defined Benefit Pension Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Assets and liabilities recognized in the Consolidated Balance Sheets: |  |  |
Deferred pension assets | $ 43.0 | $ 270.7 | $ 296.7
Other accruals | (989.1) | (1,141.1) | (972.7)
Other long-term liabilities | $ (1,196.7) | $ (1,009.3) | $ (684.4)
Domestic Defined Benefit Pension Plans |  |  |
Weighted-average assumptions used to determine projected benefit obligations: |  |  |
Rate of compensation increase (percentage) | 3.00% | 3.17% | 3.33%
Weighted-average assumptions used to determine net pension costs: |  |  |
Rate of compensation increase (percentage) | 3.17% | 3.33% | 3.30%
Foreign Defined Benefit Pension Plans |  |  |
Weighted-average assumptions used to determine projected benefit obligations: |  |  |
Rate of compensation increase (percentage) | 3.08% | 3.65% | 3.69%
Weighted-average assumptions used to determine net pension costs: |  |  |
Rate of compensation increase (percentage) | 3.65% | 3.69% | 4.33%
Defined Benefit Pension |  |  |
Plan assets: |  |  |
Balances at beginning of year | $ 864.1 | $ 935.1 |
Balances at end of year | 325.7 | 864.1 | $ 935.1
Defined Benefit Pension | Domestic Defined Benefit Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Accumulated benefit obligations at end of year | 97.2 | 521.0 | 913.4
Projected benefit obligations: |  |  |
Balances at beginning of year | 524.7 | 916.2 | 632.8
Service cost | 3.5 | 7.3 | 21.7
Interest cost | 4.8 | 32.2 | 31.1
Actuarial losses (gains) | 4.4 | (13.6) | 68.0
Acquisition |  |  | 246.9
Contributions and other | 3.1 | 3.8 | 0.8
Settlements | (429.3) | (379.1) | (43.4)
Benefits paid | (8.2) | (42.1) | (41.7)
Balances at end of year | 103.0 | 524.7 | 916.2
Plan assets: |  |  |
Balances at beginning of year | 777.0 | 1,188.6 | 847.0
Actual returns on plan assets | 31.7 | 9.6 | 182.0
Acquisition |  |  | 244.7
Settlements | (429.3) | (379.1) | (43.4)
Transfer related to plan termination | (245.3) |  |
Benefits paid | (8.2) | (42.1) | (41.7)
Balances at end of year | 125.9 | 777.0 | 1,188.6
Excess (deficient) plan assets over projected benefit obligations | 22.9 | 252.3 | 272.4
Assets and liabilities recognized in the Consolidated Balance Sheets: |  |  |
Deferred pension assets | 22.9 | 252.3 | 272.4
Total | 22.9 | 252.3 | 272.4
Amounts recognized in AOCI: |  |  |
Net actuarial losses | (2.0) | (56.4) | (64.8)
Prior service costs | (7.4) | (5.7) | (5.5)
Total amounts recognized | $ (9.4) | $ (62.1) | $ (70.3)
Weighted-average assumptions used to determine projected benefit obligations: |  |  |
Discount rate | 3.44% | 3.60% | 3.60%
Weighted-average assumptions used to determine net pension costs: |  |  |
Discount rate | 3.60% | 3.60% | 4.15%
Expected long-term rate of return on assets (percentage) | 5.00% | 5.00% | 5.00%
Defined Benefit Pension | Foreign Defined Benefit Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Accumulated benefit obligations at end of year | $ 331.7 | $ 280.0 | $ 308.2
Projected benefit obligations: |  |  |
Balances at beginning of year | 315.8 | 349.6 | 206.9
Service cost | 5.9 | 8.2 | 7.0
Interest cost | 9.4 | 9.5 | 8.2
Actuarial losses (gains) | 36.2 | (21.0) | (4.0)
Acquisition |  |  | 115.1
Contributions and other | 0.7 | 1.6 | 1.4
Settlements | (6.6) | (6.3) | (0.8)
Effect of foreign exchange | 7.8 | (16.3) | 22.9
Benefits paid | (8.5) | (9.5) | (7.1)
Balances at end of year | 360.7 | 315.8 | 349.6
Plan assets: |  |  |
Balances at beginning of year | 253.5 | 280.0 | 165.0
Actual returns on plan assets | 33.3 | (4.9) | 16.3
Acquisition |  |  | 82.3
Contributions and other | 7.7 | 8.3 | 6.1
Settlements | (6.6) | (6.3) | (0.8)
Effect of foreign exchange | 8.7 | (14.1) | 18.2
Benefits paid | (8.5) | (9.5) | (7.1)
Balances at end of year | 288.1 | 253.5 | 280.0
Excess (deficient) plan assets over projected benefit obligations | (72.6) | (62.3) | (69.6)
Assets and liabilities recognized in the Consolidated Balance Sheets: |  |  |
Deferred pension assets | 20.1 | 18.4 | 24.3
Other accruals | (2.3) | (2.7) | (2.5)
Other long-term liabilities | (90.4) | (78.0) | (91.4)
Total | (72.6) | (62.3) | (69.6)
Amounts recognized in AOCI: |  |  |
Net actuarial losses | (37.9) | (25.7) | (33.9)
Total amounts recognized | $ (37.9) | $ (25.7) | $ (33.9)
Weighted-average assumptions used to determine projected benefit obligations: |  |  |
Discount rate | 2.17% | 3.04% | 2.73%
Weighted-average assumptions used to determine net pension costs: |  |  |
Discount rate | 3.04% | 2.73% | 3.88%
Expected long-term rate of return on assets (percentage) | 4.09% | 3.84% | 4.75%

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- Definition Amount of cost recognized for passage of time related to defined benefit plan. + 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 (h)(2) -URI http://asc.fasb.org/extlink&oid=118255775&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 http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 + Details
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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(5) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan. + 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 (b)(2) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=118255775&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 http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of (increase) decrease to benefit obligation of defined benefit plan from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Includes, but is not limited to, lump-sum cash payment to participant in exchange for right to receive specified benefits, purchase of nonparticipating annuity contract and change from remeasurement. + 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 (a)(10) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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