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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of Defined Benefit Plans | The following tables set forth reconciliations of the changes in benefit obligation, plan assets and funded status as of December 31, 2017 and 2016 (in millions):
|  | Pension and ENPP Benefits |  | Postretirement Benefits
Change in benefit obligation |  | 2017 |  | 2016 |  | 2017 |  | 2016
Benefit obligation at beginning of year |  | $ | 849.8 |  |  | $ | 844.4 |  |  | $ | 28.6 |  |  | $ | 27.3 |
Service cost |  | 17.1 |  |  | 16.2 |  |  | 0.1 |  |  | — |
Interest cost |  | 20.6 |  |  | 24.6 |  |  | 1.4 |  |  | 1.4 |
Plan participants’ contributions |  | 1.1 |  |  | 1.1 |  |  | — |  |  | — |
Actuarial losses |  | 0.5 |  |  | 121.9 |  |  | 1.8 |  |  | 0.6 |
Amendments |  | — |  |  | 3.3 |  |  | — |  |  | — |
Settlements |  | (0.7 | ) |  | (3.8 | ) |  | — |  |  | — |
Curtailments |  | — |  |  | (0.4 | ) |  | — |  |  | — |
Benefits paid |  | (42.6 | ) |  | (44.1 | ) |  | (1.6 | ) |  | (1.2 | )
Foreign currency exchange rate changes |  | 70.9 |  |  | (113.4 | ) |  | (0.1 | ) |  | 0.5 |
Benefit obligation at end of year |  | $ | 916.7 |  |  | $ | 849.8 |  |  | $ | 30.2 |  |  | $ | 28.6 |
|  | Pension and ENPP Benefits |  | Postretirement Benefits
Change in plan assets |  | 2017 |  | 2016 |  | 2017 |  | 2016
Fair value of plan assets at beginning of year |  | $ | 601.7 |  |  | $ | 630.7 |  |  | $ | — |  |  | $ | — |
Actual return on plan assets |  | 47.3 |  |  | 84.4 |  |  | — |  |  | — |
Employer contributions |  | 30.3 |  |  | 31.3 |  |  | 1.6 |  |  | 1.2 |
Plan participants’ contributions |  | 1.1 |  |  | 1.1 |  |  | — |  |  | — |
Benefits paid |  | (42.6 | ) |  | (44.1 | ) |  | (1.6 | ) |  | (1.2 | )
Settlements |  | (0.7 | ) |  | (3.8 | ) |  | — |  |  | — |
Foreign currency exchange rate changes |  | 54.7 |  |  | (97.9 | ) |  | — |  |  | — |
Fair value of plan assets at end of year |  | $ | 691.8 |  |  | $ | 601.7 |  |  | $ | — |  |  | $ | — |
Funded status |  | $ | (224.9 | ) |  | $ | (248.1 | ) |  | $ | (30.2 | ) |  | $ | (28.6 | )
Unrecognized net actuarial losses |  | 360.1 |  |  | 384.7 |  |  | 3.8 |  |  | 2.0 |
Unrecognized prior service cost |  | 12.2 |  |  | 13.4 |  |  | 3.2 |  |  | 3.4 |
Accumulated other comprehensive loss |  | (372.3 | ) |  | (398.1 | ) |  | (7.0 | ) |  | (5.4 | )
Net amount recognized |  | $ | (224.9 | ) |  | $ | (248.1 | ) |  | $ | (30.2 | ) |  | $ | (28.6 | )
Amounts recognized in Consolidated Balance Sheets: |  |  |  |  |  |  |  |  |  |  |  |
Other current liabilities |  | (3.9 | ) |  | (3.5 | ) |  | (1.6 | ) |  | (1.5 | )
Accrued expenses |  | (2.3 | ) |  | (1.7 | ) |  | — |  |  | — |
Pensions and postretirement health care benefits (noncurrent) |  | (218.7 | ) |  | (242.9 | ) |  | (28.6 | ) |  | (27.1 | )
Net amount recognized |  | $ | (224.9 | ) |  | $ | (248.1 | ) |  | $ | (30.2 | ) |  | $ | (28.6 | )
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table sets forth changes in accumulated other comprehensive loss by component, net of tax, attributed to AGCO Corporation and its subsidiaries for the years ended December 31, 2017 and 2016 (in millions):
| Defined Benefit Pension Plans |  | Cumulative Translation Adjustment |  | Deferred Net Gains (Losses) on Derivatives |  | Total
Accumulated other comprehensive loss, December 31, 2015 | $ | (249.0 | ) |  | $ | (1,209.2 | ) |  | $ | (2.0 | ) |  | $ | (1,460.2 | )
Other comprehensive loss before reclassifications | (65.2 | ) |  | 80.8 |  |  | (7.7 | ) |  | 7.9 |
Net losses reclassified from accumulated other comprehensive loss | 9.7 |  |  | — |  |  | 1.0 |  |  | 10.7 |
Other comprehensive (loss) income, net of reclassification adjustments | (55.5 | ) |  | 80.8 |  |  | (6.7 | ) |  | 18.6 |
Accumulated other comprehensive loss, December 31, 2016 | (304.5 | ) |  | (1,128.4 | ) |  | (8.7 | ) |  | (1,441.6 | )
Other comprehensive income before reclassifications | 6.8 |  |  | 56.6 |  |  | 2.0 |  |  | 65.4 |
Net losses reclassified from accumulated other comprehensive loss | 12.6 |  |  | — |  |  | 2.0 |  |  | 14.6 |
Other comprehensive income, net of reclassification adjustments | 19.4 |  |  | 56.6 |  |  | 4.0 |  |  | 80.0 |
Accumulated other comprehensive loss, December 31, 2017 | $ | (285.1 | ) |  | $ | (1,071.8 | ) |  | $ | (4.7 | ) |  | $ | (1,361.6 | )
Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates | Changing the assumed health care cost trend rates by one percentage point each year and holding all other assumptions constant would have had the following effect to service and interest cost for 2017 and the accumulated postretirement benefit obligation for both the U.S. and Brazilian postretirement plans at December 31, 2017 (in millions):
| One Percentage Point Increase |  | One Percentage Point Decrease
Effect on service and interest cost | $ | 0.2 |  |  | $ | (0.1 | )
Effect on accumulated postretirement benefit obligation | $ | 3.9 |  |  | $ | (3.2 | )
Pension Benefits |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Net Pension And Postretirement Cost | Net annual pension costs for the years ended December 31, 2017, 2016 and 2015 for the Company’s defined benefit pension plans and ENPP are set forth below (in millions):
Pension benefits |  | 2017 |  | 2016 |  | 2015
Service cost |  | $ | 17.1 |  |  | $ | 16.2 |  |  | $ | 18.7 |
Interest cost |  | 20.6 |  |  | 24.6 |  |  | 31.2 |
Expected return on plan assets |  | (35.9 | ) |  | (38.8 | ) |  | (44.4 | )
Amortization of net actuarial losses |  | 13.4 |  |  | 10.0 |  |  | 8.0 |
Amortization of prior service cost |  | 1.2 |  |  | 1.0 |  |  | 0.4 |
Net loss recognized due to settlement |  | 0.2 |  |  | 0.4 |  |  | 0.2 |
Net gain recognized due to curtailment |  | — |  |  | (0.1 | ) |  | — |
Special termination benefits |  | — |  |  | — |  |  | 0.5 |
Net annual pension cost |  | $ | 16.6 |  |  | $ | 13.3 |  |  | $ | 14.6 |
Assumptions Used | The weighted average assumptions used to determine the benefit obligation for the Company’s defined benefit pension plans and ENPP as of December 31, 2017 and 2016 are as follows:
| 2017 |  | 2016
All plans: |  |  |  |  |
Weighted average discount rate | 2.5 | % |  | 2.7 | %
Rate of increase in future compensation | 1.75%-5.0% |  |  | 1.5%-5.0% |
U.S.-based plans: |  |  |  |  |
Weighted average discount rate | 3.70 | % |  | 4.25 | %
Rate of increase in future compensation(1) | 5.0 | % |  | 5.0 | %
____________________________________
(1) | Applicable for U.S. unfunded, nonqualified plan.
The weighted average assumptions used to determine the net annual pension costs for the Company’s defined benefit pension plans and ENPP for the years ended December 31, 2017, 2016 and 2015 are as follows:
| 2017 |  | 2016 |  | 2015
All plans: |  |  |  |  |  |  |  |
Weighted average discount rate | 2.7 | % |  | 3.6 | % |  | 3.5 | %
Weighted average expected long-term rate of return on plan assets | 5.8 | % |  | 6.8 | % |  | 6.8 | %
Rate of increase in future compensation | 1.5%-5.0% |  |  | 2.0%-5.0% |  |  | 2.25%-5.0% |
U.S.-based plans: |  |  |  |  |  |  |  |
Weighted average discount rate | 4.25 | % |  | 4.60 | % |  | 4.15 | %
Weighted average expected long-term rate of return on plan assets(1) | 6.0 | % |  | 6.0 | % |  | 6.0 | %
Rate of increase in future compensation(2) | 5.0 | % |  | 5.0 | % |  | 5.0 | %
___________________________________
(1) | Applicable for U.S. funded, qualified plans.
(2) | Applicable for U.S. unfunded, nonqualified plan.
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table summarizes the activity in accumulated other comprehensive loss related to the Company’s ENPP and defined pension and postretirement benefit plans during the years ended December 31, 2017 and 2016 (in millions):
|  | Before-Tax Amount |  | Income Tax |  | After-Tax Amount
Accumulated other comprehensive loss as of December 31, 2015 |  | $ | (336.6 | ) |  | $ | (87.6 | ) |  | $ | (249.0 | )
Prior service cost arising during the year |  | (3.3 | ) |  | (0.7 | ) |  | (2.6 | )
Net loss recognized due to settlement |  | 0.5 |  |  | 0.1 |  |  | 0.4 |
Net gain recognized due to curtailment |  | (0.1 | ) |  | — |  |  | (0.1 | )
Net actuarial loss arising during the year |  | (76.5 | ) |  | (13.6 | ) |  | (62.9 | )
Amortization of prior service cost |  | 1.2 |  |  | 0.1 |  |  | 1.1 |
Amortization of net actuarial losses |  | 10.0 |  |  | 1.4 |  |  | 8.6 |
Accumulated other comprehensive loss as of December 31, 2016 |  | $ | (404.8 | ) |  | $ | (100.3 | ) |  | $ | (304.5 | )
Net loss recognized due to settlement |  | 0.3 |  |  | 0.1 |  |  | 0.2 |
Net actuarial gain arising during the year |  | 9.0 |  |  | 2.4 |  |  | 6.6 |
Amortization of prior service cost |  | 1.4 |  |  | 0.1 |  |  | 1.3 |
Amortization of net actuarial losses |  | 13.5 |  |  | 2.2 |  |  | 11.3 |
Accumulated other comprehensive loss as of December 31, 2017 |  | $ | (380.6 | ) |  | $ | (95.5 | ) |  | $ | (285.1 | )
Expected Benefit Payments | At December 31, 2017, the aggregate expected benefit payments for the Company’s defined benefit pension plans and ENPP are as follows (in millions):
2018 | $ | 47.6 |
2019 | 46.6 |
2020 | 48.5 |
2021 | 49.4 |
2022 | 50.0 |
2023 through 2027 | 271.6 |
| $ | 513.7 |
Allocation of Plan Assets | The fair value of the Company’s pension assets as of December 31, 2017 is as follows (in millions):
| Total |  | Level 1 |  | Level 2 |  | Level 3
Equity securities: |  |  |  |  |  |  |  |  |  |  |
Global equities | $ | 121.7 |  |  | $ | 121.7 |  |  | $ | — |  |  | $ | — |
Non-U.S. equities | 4.3 |  |  | 4.3 |  |  | — |  |  | — |
U.K. equities | 129.9 |  |  | 129.9 |  |  | — |  |  | — |
U.S. large cap equities | 6.9 |  |  | 6.9 |  |  | — |  |  | — |
U.S. small cap equities | 4.4 |  |  | 4.4 |  |  | — |  |  | — |
Total equity securities | 267.2 |  |  | 267.2 |  |  | — |  |  | — |
Fixed income: |  |  |  |  |  |  |  |  |  |  |
Aggregate fixed income | 136.0 |  |  | 136.0 |  |  | — |  |  | — |
International fixed income | 214.4 |  |  | 214.4 |  |  | — |  |  | — |
Total fixed income share(1) | 350.4 |  |  | 350.4 |  |  | — |  |  | — |
Alternative investments: |  |  |  |  |  |  |
Private equity fund | 2.4 |  |  | — |  |  | — |  |  | 2.4 |
Hedge funds measured at net asset value(4) | 34.8 |  |  | — |  |  | — |  |  | — |
Total alternative investments(2) | 37.2 |  |  | — |  |  | — |  |  | 2.4 |
Miscellaneous funds(3) | 25.4 |  |  | — |  |  | — |  |  | 25.4 |
Cash and equivalents measured at net asset value(4) | 11.6 |  |  | — |  |  | — |  |  | — |
Total assets | $ | 691.8 |  |  | $ | 617.6 |  |  | $ | — |  |  | $ | 27.8 |
______________________________________
(1) | 30% of “fixed income” securities are in investment-grade corporate bonds; 29% are in government treasuries; 15% are in foreign securities; 13% are in high-yield securities; and 13% are in other various fixed income securities.
(2) | 39% of “alternative investments” are in relative value funds; 26% are in long-short equity funds; 21% are in event-driven funds; 8% are distributed in hedged and non-hedged funds; and 6% are in credit funds.
(3) | “Miscellaneous funds” is comprised of insurance contracts in Finland, Norway and Switzerland.
(4) | Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy.
The fair value of the Company’s pension assets as of December 31, 2016 is as follows (in millions):
| Total |  | Level 1 |  | Level 2 |  | Level 3
Equity securities: |  |  |  |  |  |  |  |  |  |  |
Global equities | $ | 103.6 |  |  | $ | 103.6 |  |  | $ | — |  |  | $ | — |
Non-U.S. equities | 4.1 |  |  | 4.1 |  |  | — |  |  | — |
U.K. equities | 109.1 |  |  | 109.1 |  |  | — |  |  | — |
U.S. large cap equities | 6.2 |  |  | 6.2 |  |  | — |  |  | — |
U.S. small cap equities | 4.3 |  |  | 4.3 |  |  | — |  |  | — |
Total equity securities | 227.3 |  |  | 227.3 |  |  | — |  |  | — |
Fixed income: |  |  |  |  |  |  |  |  |  |  |
Aggregate fixed income | 118.0 |  |  | 118.0 |  |  | — |  |  | — |
International fixed income | 191.9 |  |  | 191.9 |  |  | — |  |  | — |
Total fixed income share(1) | 309.9 |  |  | 309.9 |  |  | — |  |  | — |
Alternative investments: |  |  |  |  |  |  |
Private equity fund | 2.4 |  |  | — |  |  | — |  |  | 2.4 |
Hedge funds measured at net asset value(4) | 34.4 |  |  | — |  |  | — |  |  | — |
Total alternative investments(2) | 36.8 |  |  | — |  |  | — |  |  | 2.4 |
Miscellaneous funds(3) | 21.4 |  |  | — |  |  | — |  |  | 21.4 |
Cash and equivalents measured at net asset value(4) | 6.3 |  |  | — |  |  | — |  |  | — |
Total assets | $ | 601.7 |  |  | $ | 537.2 |  |  | $ | — |  |  | $ | 23.8 |
_______________________________________
(1) | 31% of “fixed income” securities are in foreign securities; 25% are in government treasuries; 19% are in investment-grade corporate bonds; 13% are in high-yield securities; and 12% are in other various fixed income securities.
(2) | 32% of “alternative investments” are in relative value funds; 27% are in long-short equity funds; 23% are in event-driven funds; 12% are distributed in hedged and non-hedged funds; and 6% are in credit funds.
(3) | “Miscellaneous funds” is comprised of insurance contracts in Finland, Norway and Switzerland.
(4) | Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been categorized in the fair value hierarchy.
Reconciliation of Significant Unobservable Inputs, Changes in Plan Assets | The following is a reconciliation of Level 3 assets as of December 31, 2017 (in millions):
| Total |  | Alternative Investments |  | Miscellaneous Funds
Beginning balance as of December 31, 2016 | $ | 23.8 |  |  | $ | 2.4 |  |  | $ | 21.4 |
Actual return on plan assets: |  |  |  |  |  |  |  |
(a) Relating to assets still held at reporting date | (2.3 | ) |  | (0.1 | ) |  | (2.2 | )
(b) Relating to assets sold during period | — |  |  | — |  |  | — |
Purchases, sales and /or settlements | 3.4 |  |  | 0.1 |  |  | 3.3 |
Foreign currency exchange rate changes | 2.9 |  |  | — |  |  | 2.9 |
Ending balance as of December 31, 2017 | $ | 27.8 |  |  | $ | 2.4 |  |  | $ | 25.4 |
The following is a reconciliation of Level 3 assets as of December 31, 2016 (in millions):
| Total |  | Alternative Investments |  | Miscellaneous Funds
Beginning balance as of December 31, 2015 | $ | 24.1 |  |  | $ | 2.4 |  |  | $ | 21.7 |
Actual return on plan assets: |  |  |  |  |  |  |  |
(a) Relating to assets still held at reporting date | 1.0 |  |  | — |  |  | 1.0 |
(b) Relating to assets sold during period | — |  |  | — |  |  | — |
Purchases, sales and /or settlements | (0.8 | ) |  | — |  |  | (0.8 | )
Foreign currency exchange rate changes | (0.5 | ) |  | — |  |  | (0.5 | )
Ending balance as of December 31, 2016 | $ | 23.8 |  |  | $ | 2.4 |  |  | $ | 21.4 |
Postretirement Benefits |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Net Pension And Postretirement Cost | Net annual postretirement benefit costs, and the weighted average discount rate used to determine them, for the years ended December 31, 2017, 2016 and 2015 are set forth below (in millions, except percentages):
Postretirement benefits |  | 2017 |  | 2016 |  | 2015
Service cost |  | $ | 0.1 |  |  | $ | — |  |  | $ | — |
Interest cost |  | 1.4 |  |  | 1.4 |  |  | 1.3 |
Amortization of prior service cost |  | 0.2 |  |  | 0.2 |  |  | 0.2 |
Amortization of net actuarial losses |  | 0.1 |  |  | — |  |  | 0.1 |
Net annual postretirement benefit cost |  | $ | 1.8 |  |  | $ | 1.6 |  |  | $ | 1.6 |
Weighted average discount rate |  | 5.3 | % |  | 5.1 | % |  | 4.6 | %
Expected Benefit Payments | At December 31, 2017, the aggregate expected benefit payments for the Company’s U.S. and Brazilian postretirement benefit plans are as follows (in millions):
2018 | $ | 1.6 |
2019 | 1.7 |
2020 | 1.7 |
2021 | 1.8 |
2022 | 1.8 |
2023 through 2027 | 9.4 |
| $ | 18.0 |
Foreign Plan [Member] | Pension Benefits |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Allocation of Plan Assets | The weighted average asset allocation of the Company’s non-U.S. pension benefit plans as of December 31, 2017 and 2016 are as follows:
Asset Category |  | 2017 |  | 2016
Equity securities |  | 40 | % |  | 39 | %
Fixed income securities |  | 53 | % |  | 54 | %
Other investments |  | 7 | % |  | 7 | %
Total |  | 100 | % |  | 100 | %
UNITED STATES | Pension Benefits |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Allocation of Plan Assets | The weighted average asset allocation of the Company’s U.S. pension benefit plans as of December 31, 2017 and 2016 are as follows:
Asset Category |  | 2017 |  | 2016
Large and small cap domestic equity securities |  | 31 | % |  | 29 | %
International equity securities |  | 12 | % |  | 11 | %
Domestic fixed income securities |  | 43 | % |  | 42 | %
Other investments |  | 14 | % |  | 18 | %
Total |  | 100 | % |  | 100 | %

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