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Retirement Benefits | 12 Months Ended
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Dec. 31, 2020
Retirement Benefits [Abstract] |
Retirement Benefits | Retirement Benefits We use a measurement date of December 31 to develop the change in benefit obligation, change in plan assets, funded status, and amounts recognized in the consolidated balance sheets at December 31 for our defined benefit pension and retiree health benefit plans, which were as follows:
| Defined Benefit Pension Plans |  | Retiree Health Benefit Plans
| 2020 |  | 2019 |  | 2020 |  | 2019
Change in benefit obligation: |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | 16,251.0 |  |  | $ | 13,427.1 |  |  | $ | 1,601.4 |  |  | $ | 1,540.0 |
Service cost | 325.5 |  |  | 250.4 |  |  | 40.8 |  |  | 36.3 |
Interest cost | 425.8 |  |  | 486.0 |  |  | 43.7 |  |  | 58.0 |
Actuarial loss | 1,563.1 |  |  | 2,631.7 |  |  | 142.1 |  |  | 54.3 |
Benefits paid | (587.2) |  |  | (584.2) |  |  | (75.1) |  |  | (87.3) |
Curtailment (gain) loss | 2.2 |  |  | (16.8) |  |  | — |  |  | (0.5) |
Foreign currency exchange rate changes and other adjustments | 245.1 |  |  | 56.8 |  |  | 0.8 |  |  | 0.6 |
Benefit obligation at end of year | 18,225.5 |  |  | 16,251.0 |  |  | 1,753.7 |  |  | 1,601.4 |
Change in plan assets: |  |  |  |  |  |  |
Fair value of plan assets at beginning of year | 12,858.0 |  |  | 10,932.6 |  |  | 2,768.2 |  |  | 2,398.1 |
Actual return on plan assets | 1,802.4 |  |  | 2,012.0 |  |  | 539.0 |  |  | 444.1 |
Employer contribution | 318.8 |  |  | 429.9 |  |  | (5.1) |  |  | 13.2 |
Benefits paid | (587.2) |  |  | (584.2) |  |  | (75.1) |  |  | (87.3) |
Foreign currency exchange rate changes and other adjustments | 187.0 |  |  | 67.7 |  |  | — |  |  | 0.1 |
Fair value of plan assets at end of year | 14,579.0 |  |  | 12,858.0 |  |  | 3,227.0 |  |  | 2,768.2 |
Funded status | (3,646.5) |  |  | (3,393.0) |  |  | 1,473.3 |  |  | 1,166.8 |
Unrecognized net actuarial (gain) loss | 6,515.5 |  |  | 6,177.6 |  |  | (349.1) |  |  | (111.6) |
Unrecognized prior service (benefit) cost | 15.4 |  |  | 17.4 |  |  | (177.6) |  |  | (236.4) |
Net amount recognized | $ | 2,884.4 |  |  | $ | 2,802.0 |  |  | $ | 946.6 |  |  | $ | 818.8 |
Amounts recognized in the consolidated balance sheet consisted of: |  |  |  |  |  |  |
Other noncurrent assets | $ | 299.6 |  |  | $ | 163.3 |  |  | $ | 1,697.0 |  |  | $ | 1,381.3 |
Other current liabilities | (67.9) |  |  | (65.3) |  |  | (7.4) |  |  | (7.3) |
Accrued retirement benefits | (3,878.2) |  |  | (3,491.0) |  |  | (216.3) |  |  | (207.2) |
Accumulated other comprehensive (income) loss before income taxes | 6,530.9 |  |  | 6,195.0 |  |  | (526.7) |  |  | (348.0) |
Net amount recognized | $ | 2,884.4 |  |  | $ | 2,802.0 |  |  | $ | 946.6 |  |  | $ | 818.8 |
The unrecognized net actuarial loss (gain) and unrecognized prior service cost (benefit) have not yet been recognized in net periodic pension costs and were included in accumulated other comprehensive loss at December 31, 2020 and 2019. Effective during the third quarter of 2020, we adopted a voluntary change in our method of applying an accounting principle for certain of our retirement benefit plans. The new accounting method changes the computation of expected returns on U.S. dollar denominated investment grade debt securities and derivatives in such plans from a calculated value that includes changes in the fair values over a period of five years to actual fair value. This change in accounting principle is preferable because changes in the fair value of this class of assets will be amortized into net periodic pension and retiree health cost sooner. No change is being made to the accounting principle for the other classes of pension assets. The impact of the adoption of this change in accounting method was not material to our historical and current consolidated financial statements. A decrease in the discount rate was the primary driver for the $2.13 billion and $2.89 billion increase in the benefit obligation in 2020 and 2019, respectively. In July 2018, we announced that we would amend our defined benefit pension and retiree health benefit plans to freeze or reduce benefits for certain employees effective January 1, 2019. We remeasured the impacted pension and retiree health plans’ benefit obligations as of July 31, 2018, which resulted in a net curtailment gain of $28.0 million, which was recorded in asset impairment, restructuring, and other special charges. The following represents our weighted-average assumptions as of December 31:
| Defined Benefit Pension Plans |  | Retiree Health Benefit Plans
(Percents) | 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018
Discount rate for benefit obligation | 2.4 | % |  | 3.0 | % |  | 4.0 | % |  | 2.6 | % |  | 3.3 | % |  | 4.4 | %
Discount rate for net benefit costs | 3.0 |  |  | 4.0 |  |  | 3.4 |  |  | 3.3 |  |  | 4.4 |  |  | 3.7 |
Rate of compensation increase for benefit obligation | 3.3 |  |  | 3.3 |  |  | 3.4 |  |  |  |  |  |  |
Rate of compensation increase for net benefit costs | 3.3 |  |  | 3.4 |  |  | 3.4 |  |  |  |  |  |  |
Expected return on plan assets for net benefit costs | 7.3 |  |  | 7.4 |  |  | 7.4 |  |  | 6.0 |  |  | 6.0 |  |  | 8.0 |
We annually evaluate the expected return on plan assets in our defined benefit pension and retiree health benefit plans. In evaluating the expected rate of return, we consider many factors, with a primary analysis of current and projected market conditions; asset returns and asset allocations; and the views of leading financial advisers and economists. We may also review our historical assumptions compared with actual results, as well as the assumptions and trend rates utilized by similar plans, where applicable. Given the design of our retiree health benefit plans, healthcare-cost trend rates do not have a material impact on our financial condition or results of operations. The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid as follows:
| 2021 |  | 2022 |  | 2023 |  | 2024 |  | 2025 |  | 2026-2030
Defined benefit pension plans | $ | 639.2 |  |  | $ | 635.3 |  |  | $ | 645.8 |  |  | $ | 673.1 |  |  | $ | 689.6 |  |  | $ | 3,800.8 |
Retiree health benefit plans | 91.2 |  |  | 91.2 |  |  | 91.2 |  |  | 94.9 |  |  | 95.7 |  |  | 481.8 |
Amounts relating to defined benefit pension plans with projected benefit obligations in excess of plan assets were as follows at December 31:
| 2020 |  | 2019
Projected benefit obligation | $ | 15,770.7 |  |  | $ | 14,039.7 |
Fair value of plan assets | 11,824.4 |  |  | 10,483.4 |
Amounts relating to defined benefit pension plans and retiree health benefit plans with accumulated benefit obligations in excess of plan assets were as follows at December 31:
| Defined Benefit Pension Plans |  | Retiree Health Benefit Plans
| 2020 |  | 2019 |  | 2020 |  | 2019
Accumulated benefit obligation | $ | 14,682.3 |  |  | $ | 13,063.7 |  |  | $ | 223.8 |  |  | $ | 214.4 |
Fair value of plan assets | 11,824.4 |  |  | 10,483.4 |  |  | — |  |  | — |
The total accumulated benefit obligation for our defined benefit pension plans was $17.03 billion and $15.17 billion at December 31, 2020 and 2019, respectively. Net pension and retiree health benefit expense included the following components:
| Defined Benefit Pension Plans |  | Retiree Health Benefit Plans
| 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018
Components of net periodic (benefit) cost: |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 325.5 |  |  | $ | 250.4 |  |  | $ | 292.7 |  |  | $ | 40.8 |  |  | $ | 36.3 |  |  | $ | 41.5 |
Interest cost | 425.8 |  |  | 486.0 |  |  | 458.5 |  |  | 43.7 |  |  | 58.0 |  |  | 57.3 |
Expected return on plan assets | (901.5) |  |  | (839.6) |  |  | (842.1) |  |  | (158.1) |  |  | (144.3) |  |  | (177.9) |
Amortization of prior service (benefit) cost | 4.5 |  |  | 6.1 |  |  | 4.6 |  |  | (59.5) |  |  | (62.9) |  |  | (79.5) |
Recognized actuarial loss (gain) | 396.3 |  |  | 284.9 |  |  | 332.5 |  |  | (3.0) |  |  | 1.9 |  |  | 6.1 |
Curtailment (gain) loss | — |  |  | 2.2 |  |  | 1.3 |  |  | — |  |  | — |  |  | (29.3) |
Net periodic (benefit) cost | $ | 250.6 |  |  | $ | 190.0 |  |  | $ | 247.5 |  |  | $ | (136.1) |  |  | $ | (111.0) |  |  | $ | (181.8) |
The following represents the amounts recognized in other comprehensive income (loss) for the years ended December 31, 2020, 2019, and 2018:
| Defined Benefit Pension Plans |  | Retiree Health Benefit Plans
| 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018
Actuarial gain (loss) arising during period | $ | (663.0) |  |  | $ | (1,461.0) |  |  | $ | 182.8 |  |  | $ | 238.8 |  |  | $ | 246.1 |  |  | $ | 37.5 |
Plan amendments during period | (2.2) |  |  | — |  |  | (17.6) |  |  | — |  |  | — |  |  | 14.1 |
Curtailment gain (loss) | — |  |  | 19.0 |  |  | 45.2 |  |  | — |  |  | — |  |  | (31.8) |
Amortization of prior service (benefit) cost included in net income | 4.5 |  |  | 6.1 |  |  | 4.6 |  |  | (59.5) |  |  | (62.9) |  |  | (79.5) |
Amortization of net actuarial loss included in net income | 396.3 |  |  | 284.9 |  |  | 332.5 |  |  | (3.0) |  |  | 1.9 |  |  | 6.1 |
Foreign currency exchange rate changes and other | (71.5) |  |  | (7.7) |  |  | 47.1 |  |  | 2.4 |  |  | 3.6 |  |  | (0.1) |
Total other comprehensive income (loss) during period | $ | (335.9) |  |  | $ | (1,158.7) |  |  | $ | 594.6 |  |  | $ | 178.7 |  |  | $ | 188.7 |  |  | $ | (53.7) |
We have defined contribution savings plans that cover our eligible employees worldwide. The purpose of these plans is generally to provide additional financial security during retirement by providing employees with an incentive to save. Our contributions to the plans are based on employee contributions and the level of our match. Expenses under the plans totaled $164.3 million, $145.2 million, and $132.6 million for the years ended December 31, 2020, 2019, and 2018, respectively. We provide certain other postemployment benefits primarily related to disability benefits and accrue for the related cost over the service lives of employees. Expenses associated with these benefit plans for the years ended December 31, 2020, 2019, and 2018 were not material. Benefit Plan Investments Our benefit plan investment policies are set with specific consideration of return and risk requirements in relationship to the respective liabilities. U.S. and Puerto Rico plans represent approximately 80 percent of our global investments. Given the long-term nature of our liabilities, these plans have the flexibility to manage an above-average degree of risk in the asset portfolios. At the investment-policy level, there are no specifically prohibited investments. However, within individual investment manager mandates, restrictions and limitations are contractually set to align with our investment objectives, ensure risk control, and limit concentrations. We manage our portfolio to minimize concentration of risk by allocating funds within asset categories. In addition, within a category we use different managers with various management objectives to eliminate any significant concentration of risk. Our global benefit plans may enter into contractual arrangements (derivatives) to implement the local investment policy or manage particular portfolio risks. Derivatives are principally used to increase or decrease exposure to a particular public equity, fixed income, commodity, or currency market more rapidly or less expensively than could be accomplished through the use of the cash markets. The plans utilize both exchange-traded and over-the-counter instruments. The maximum exposure to either a market or counterparty credit loss is limited to the carrying value of the receivable, and is managed within contractual limits. We expect all of our counterparties to meet their obligations. The gross values of these derivative receivables and payables are not material to the global asset portfolio, and their values are reflected within the tables below. The defined benefit pension and retiree health benefit plan allocation for the U.S. and Puerto Rico currently comprises approximately 65 percent growth investments and 35 percent fixed-income investments. The growth investment allocation encompasses U.S. and international public equity securities, hedge funds, private equity-like investments, and real estate. These portfolio allocations are intended to reduce overall risk by providing diversification, while seeking moderate to high returns over the long term. Public equity securities are well diversified and invested in U.S. and international small-to-large companies across various asset managers and styles. The remaining portion of the growth portfolio is invested in private alternative investments. Fixed-income investments primarily consist of fixed-income securities in U.S. treasuries and agencies, emerging market debt obligations, corporate bonds, bank loans, mortgage-backed securities, commercial mortgage-backed obligations, and any related repurchase agreements. Hedge funds are privately owned institutional investment funds that generally have moderate liquidity. Hedge funds seek specified levels of absolute return regardless of overall market conditions, and generally have low correlations to public equity and debt markets. Hedge funds often invest substantially in financial market instruments (stocks, bonds, commodities, currencies, derivatives, etc.) using a very broad range of trading activities to manage portfolio risks. Hedge fund strategies focus primarily on security selection and seek to be neutral with respect to market moves. Common groupings of hedge fund strategies include relative value, tactical, and event driven. Relative value strategies include arbitrage, when the same asset can simultaneously be bought and sold at different prices, achieving an immediate profit. Tactical strategies often take long and short positions to reduce or eliminate overall market risks while seeking a particular investment opportunity. Event strategy opportunities can evolve from specific company announcements such as mergers and acquisitions, and typically have little correlation to overall market directional movements. Our hedge fund investments are made through limited partnership interests in fund-of-funds structures and directly into hedge funds. Plan holdings in hedge funds are valued based on net asset values (NAVs) calculated by each fund or general partner, as applicable, and we have the ability to redeem these investments at NAV. Private equity-like investment funds typically have low liquidity and are made through long-term partnerships or joint ventures that invest in pools of capital invested in primarily non-publicly traded entities. Underlying investments include venture capital (early stage investing), buyout, special situations, private debt, and private real estate investments. Private equity management firms typically acquire and then reorganize private companies to create increased long term value. Private equity-like funds usually have a limited life of approximately 10-15 years, and require a minimum investment commitment from their limited partners. Our private equity-like investments are made both directly into funds and through fund-of-funds structures to ensure broad diversification of management styles and assets across the portfolio. Plan holdings in private equity-like investments are valued using the value reported by the partnership, adjusted for known cash flows and significant events through our reporting date. Values provided by the partnerships are primarily based on analysis of and judgments about the underlying investments. Inputs to these valuations include underlying NAVs, discounted cash flow valuations, comparable market valuations, and may also include adjustments for currency, credit, liquidity and other risks as applicable. The vast majority of these private partnerships provide us with annual audited financial statements including their compliance with fair valuation procedures consistent with applicable accounting standards. Real estate is composed of public holdings. Real estate investments in registered investment companies that trade on an exchange are classified as Level 1 on the fair value hierarchy. Real estate investments in funds measured at fair value on the basis of NAV provided by the fund manager are classified as such. These NAVs are developed with inputs including discounted cash flow, independent appraisal, and market comparable analyses. Other assets include cash and cash equivalents and mark-to-market value of derivatives. The cash value of the trust-owned insurance contract is primarily invested in investment-grade publicly traded equity and fixed-income securities. Other than hedge funds, private equity-like investments, and a portion of the real estate holdings, which are discussed above, we determine fair values based on a market approach using quoted market values, significant other observable inputs for identical or comparable assets or liabilities, or discounted cash flow analyses. The fair values of our defined benefit pension plan and retiree health plan assets as of December 31, 2020 by asset category were as follows:
|  |  | Fair Value Measurements Using |  |
Asset Class | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Investments Valued at Net Asset Value(1)
Defined Benefit Pension Plans |  |  |  |  |  |  |  |  |
Public equity securities: |  |  |  |  |  |  |  |  |
U.S. | $ | 737.6 |  |  | $ | 476.1 |  |  | $ | — |  |  | $ | 1.0 |  |  | $ | 260.5 |
International | 2,635.8 |  |  | 1,102.3 |  |  | — |  |  | — |  |  | 1,533.5 |
Fixed income: |  |  |  |  |  |  |  |  |
Developed markets | 4,301.3 |  |  | 2.9 |  |  | 3,179.2 |  |  | — |  |  | 1,119.2 |
Developed markets - repurchase agreements | (1,670.8) |  |  | — |  |  | (1,670.8) |  |  | — |  |  | — |
Emerging markets | 631.0 |  |  | 14.2 |  |  | 262.7 |  |  | 0.1 |  |  | 354.0 |
Private alternative investments: |  |  |  |  |  |  |  |  |
Hedge funds | 2,661.3 |  |  | — |  |  | — |  |  | — |  |  | 2,661.3 |
Equity-like funds | 2,844.7 |  |  | — |  |  | — |  |  | 16.9 |  |  | 2,827.8 |
Real estate | 558.9 |  |  | 259.6 |  |  | 6.9 |  |  | 5.8 |  |  | 286.6 |
Other | 1,879.2 |  |  | 60.4 |  |  | 301.2 |  |  | 18.0 |  |  | 1,499.6 |
Total | $ | 14,579.0 |  |  | $ | 1,915.5 |  |  | $ | 2,079.2 |  |  | $ | 41.8 |  |  | $ | 10,542.5 |
Retiree Health Benefit Plans |  |  |  |  |  |  |  |  |
Public equity securities: |  |  |  |  |  |  |  |  |
U.S. | $ | 68.3 |  |  | $ | 45.0 |  |  | $ | — |  |  | $ | 0.1 |  |  | $ | 23.2 |
International | 162.3 |  |  | 58.1 |  |  | — |  |  | — |  |  | 104.2 |
Fixed income: |  |  |  |  |  |  |  |  |
Developed markets | 101.5 |  |  | — |  |  | 80.3 |  |  | — |  |  | 21.2 |
Emerging markets | 53.5 |  |  | — |  |  | 24.7 |  |  | — |  |  | 28.8 |
Private alternative investments: |  |  |  |  |  |  |  |  |
Hedge funds | 229.7 |  |  | — |  |  | — |  |  | — |  |  | 229.7 |
Equity-like funds | 223.4 |  |  | — |  |  | — |  |  | 1.6 |  |  | 221.8 |
Cash value of trust owned insurance contract | 2,204.6 |  |  | — |  |  | 2,204.6 |  |  | — |  |  | — |
Real estate | 25.8 |  |  | 24.5 |  |  | 0.7 |  |  | 0.6 |  |  | — |
Other | 157.9 |  |  | 14.1 |  |  | 21.1 |  |  | 1.7 |  |  | 121.0 |
Total | $ | 3,227.0 |  |  | $ | 141.7 |  |  | $ | 2,331.4 |  |  | $ | 4.0 |  |  | $ | 749.9 |
(1) Certain investments that are measured at fair value using the NAV per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. No material transfers between Level 1, Level 2, or Level 3 occurred during the year ended December 31, 2020. The activity in the Level 3 investments during the year ended December 31, 2020 was not material. The fair values of our defined benefit pension plan and retiree health plan assets as of December 31, 2019 by asset category were as follows:
|  |  | Fair Value Measurements Using |  |
Asset Class | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Investments Valued at Net Asset Value(1)
Defined Benefit Pension Plans |  |  |  |  |  |  |  |  |
Public equity securities: |  |  |  |  |  |  |  |  |
U.S. | $ | 794.2 |  |  | $ | 532.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 261.7 |
International | 2,439.2 |  |  | 1,046.8 |  |  | — |  |  | — |  |  | 1,392.4 |
Fixed income: |  |  |  |  |  |  |  |  |
Developed markets | 3,661.4 |  |  | 4.8 |  |  | 2,658.9 |  |  | — |  |  | 997.7 |
Developed markets - repurchase agreements | (1,659.1) |  |  | — |  |  | (1,659.1) |  |  | — |  |  | — |
Emerging markets | 648.0 |  |  | 18.5 |  |  | 277.4 |  |  | 4.1 |  |  | 348.0 |
Private alternative investments: |  |  |  |  |  |  |  |  |
Hedge funds | 2,897.9 |  |  | — |  |  | — |  |  | — |  |  | 2,897.9 |
Equity-like funds | 2,279.3 |  |  | — |  |  | — |  |  | 16.8 |  |  | 2,262.5 |
Real estate | 570.3 |  |  | 166.2 |  |  | — |  |  | — |  |  | 404.1 |
Other | 1,226.8 |  |  | 62.9 |  |  | 222.6 |  |  | 6.6 |  |  | 934.7 |
Total | $ | 12,858.0 |  |  | $ | 1,831.7 |  |  | $ | 1,499.8 |  |  | $ | 27.5 |  |  | $ | 9,499.0 |
Retiree Health Benefit Plans |  |  |  |  |  |  |  |  |
Public equity securities: |  |  |  |  |  |  |  |  |
U.S. | $ | 76.5 |  |  | $ | 52.1 |  |  | $ | — |  |  | $ | — |  |  | $ | 24.4 |
International | 152.6 |  |  | 60.8 |  |  | — |  |  | — |  |  | 91.8 |
Fixed income: |  |  |  |  |  |  |  |  |
Developed markets | 82.7 |  |  | — |  |  | 56.3 |  |  | — |  |  | 26.4 |
Emerging markets | 58.5 |  |  | — |  |  | 27.0 |  |  | 0.4 |  |  | 31.1 |
Private alternative investments: |  |  |  |  |  |  |  |  |
Hedge funds | 250.8 |  |  | — |  |  | — |  |  | — |  |  | 250.8 |
Equity-like funds | 187.4 |  |  | — |  |  | — |  |  | 1.6 |  |  | 185.8 |
Cash value of trust owned insurance contract | 1,832.2 |  |  | — |  |  | 1,832.2 |  |  | — |  |  | — |
Real estate | 31.3 |  |  | 16.2 |  |  | — |  |  | — |  |  | 15.1 |
Other | 96.2 |  |  | 11.4 |  |  | 7.9 |  |  | 0.7 |  |  | 76.2 |
Total | $ | 2,768.2 |  |  | $ | 140.5 |  |  | $ | 1,923.4 |  |  | $ | 2.7 |  |  | $ | 701.6 |
(1) Certain investments that are measured at fair value using the NAV per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. No material transfers between Level 1, Level 2, or Level 3 occurred during the year ended December 31, 2019. The activity in the Level 3 investments during the year ended December 31, 2019 was not material. In 2021, we expect to contribute approximately $40 million to our defined benefit pension plans to satisfy minimum funding requirements for the year. We expect to contribute approximately $10 million in additional discretionary contributions in 2021

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