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Pension and Other Postretirement Benefits | 12 Months Ended
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Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract] |
Pension and Other Postretirement Benefits | Pension and Other Postretirement Benefits In 2016, the Company changed the method used to estimate the service and interest cost components of net periodic pension and postretirement benefits cost. The new method uses the spot yield curve approach to estimate the service and interest cost by applying the specific spot rates along the yield curve used to determine the benefit plan obligations to relevant projected cash outflows. Previously, the service and interest cost components were determined using a single weighted-average discount rate. The change does not affect the measurement of the total benefit plan obligation. The spot yield curve approach provides a more precise measure of service and interest cost by improving the correlation between the projected benefit cash flows and the discrete spot yield curve rates. The company accounted for this change as a change in estimate prospectively beginning in 2016. Pensions. The Company sponsors various pension plans covering certain U.S. and non-U.S. employees, and participates in certain multi-employer pension plans. The benefits under the Company plans are based primarily on years of service and either the employees’ remuneration near retirement or a fixed dollar multiple. A measurement date of December 31 was used for all plans presented below. The components of pension expense were as follows:
U.S. Plans | 2016 |  | 2015 |  | 2014
Service cost | $ | 14 |  |  | $ | 14 |  |  | $ | 13 |
Interest cost | 50 |  |  | 63 |  |  | 66 |
Expected return on plan assets | (91 | ) |  | (100 | ) |  | (104 | )
Amortization of actuarial loss | 50 |  |  | 50 |  |  | 41 |
Amortization of prior service cost | 1 |  |  | — |  |  | — |
Net periodic cost | $ | 24 |  |  | $ | 27 |  |  | $ | 16 |
Non-U.S. Plans | 2016 |  | 2015 |  | 2014
Service cost | $ | 21 |  |  | $ | 24 |  |  | $ | 23 |
Interest cost | 101 |  |  | 127 |  |  | 154 |
Expected return on plan assets | (157 | ) |  | (172 | ) |  | (194 | )
Amortization of actuarial loss | 50 |  |  | 55 |  |  | 73 |
Amortization of prior service credit | (12 | ) |  | (13 | ) |  | (16 | )
Net periodic cost | $ | 3 |  |  | $ | 21 |  |  | $ | 40 |
Additional pension expense of $5 was recognized in each of 2016, 2015 and 2014 for multi-employer plans. Also, in 2016, the Company recorded pension settlement charges of $14, which were included in restructuring and other in the Consolidated Statement of Operations. The projected benefit obligations, accumulated benefit obligations, plan assets and funded status of the Company's U.S. and non-U.S. plans is as follows:
| U.S. Plans |  | Non-U.S. Plans
| 2016 |  | 2015 |  | 2016 |  | 2015
Projected Benefit Obligations |  |  |  |  |  |  |
Benefit obligations at January 1 | $ | 1,501 |  |  | $ | 1,601 |  |  | $ | 3,493 |  |  | $ | 3,750 |
Service cost | 14 |  |  | 14 |  |  | 21 |  |  | 24 |
Interest cost | 50 |  |  | 63 |  |  | 101 |  |  | 127 |
Plan participants’ contributions | — |  |  | — |  |  | 3 |  |  | 3 |
Amendments | 3 |  |  | — |  |  | — |  |  | — |
Settlements | (39 | ) |  | (5 | ) |  | — |  |  | — |
Actuarial (gain) / loss | 54 |  |  | (69 | ) |  | 382 |  |  | (62 | )
Acquisitions | — |  |  | — |  |  | — |  |  | 82 |
Benefits paid | (101 | ) |  | (103 | ) |  | (172 | ) |  | (190 | )
Foreign currency translation | — |  |  | — |  |  | (545 | ) |  | (241 | )
Benefit obligations at December 31 | $ | 1,482 |  |  | $ | 1,501 |  |  | $ | 3,283 |  |  | $ | 3,493 |
Plan Assets |  |  |  |  |  |  |
Fair value of plan assets at January 1 | $ | 1,190 |  |  | $ | 1,300 |  |  | $ | 3,169 |  |  | $ | 3,410 |
Actual return on plan assets | 65 |  |  | (9 | ) |  | 611 |  |  | 48 |
Employer contributions | 41 |  |  | 7 |  |  | 62 |  |  | 72 |
Plan participants’ contributions | — |  |  | — |  |  | 3 |  |  | 3 |
Settlements | (39 | ) |  | (5 | ) |  | — |  |  | — |
Acquisitions | — |  |  | — |  |  | — |  |  | 40 |
Benefits paid | (101 | ) |  | (103 | ) |  | (172 | ) |  | (190 | )
Foreign currency translation | — |  |  | — |  |  | (521 | ) |  | (214 | )
Fair value of plan assets at December 31 | $ | 1,156 |  |  | $ | 1,190 |  |  | $ | 3,152 |  |  | $ | 3,169 |
Funded Status | $ | (326 | ) |  | $ | (311 | ) |  | $ | (131 | ) |  | $ | (324 | )
Accumulated benefit obligations at December 31 | $ | 1,446 |  |  | $ | 1,463 |  |  | $ | 3,191 |  |  | $ | 3,387 |
Information for pension plans with accumulated benefit obligations in excess of plan assets is as follows:
U.S. Plans | 2016 |  | 2015
Projected benefit obligations | $ | 1,482 |  |  | $ | 1,501 |
Accumulated benefit obligations | 1,446 |  |  | 1,463 |
Fair value of plan assets | 1,156 |  |  | 1,190 |
Non-U.S. Plans | 2016 |  | 2015
Projected benefit obligations | $ | 224 |  |  | $ | 3,346 |
Accumulated benefit obligations | 200 |  |  | 3,241 |
Fair value of plan assets | 85 |  |  | 3,015 |
The Company’s investment strategy in its U.S. plan is designed to generate returns that are consistent with providing benefits to plan participants within the risk tolerance of the plan. Asset allocation is the primary determinant of return levels and investment risk exposure. The assets of the plan are broadly diversified in terms of securities and security types in order to limit the potential of large losses from any one security. The strategic ranges for asset allocation in the U.S. plan are as follows:
U.S. equities | 30 | % | to | 40 | %
International equities | 10 | % | to | 15 | %
Fixed income | 15 | % | to | 25 | %
Balanced funds | 10 | % | to | 20 | %
Real estate | 5 | % | to | 10 | %
Private equity | 5 | % | to | 10 | %
The Company’s investment strategy in its U.K. plan, the largest non-U.S. plan, is designed to achieve a funding level of 100% within the next 11 years by targeting an expected return of 2.0% annually in excess of the expected growth in the liabilities. The Company seeks to achieve this return with a risk level commensurate with a 5% chance of the funding level falling between 4% and 8% in any one year. The strategic ranges for asset allocation in the U.K. plan are as follows:
Investment grade credit | 40 | % | to | 80 | %
Equities | 0 | % | to | 30 | %
Hedge funds | 0 | % | to | 10 | %
Real estate | 0 | % | to | 5 | %
Private equity | 0 | % | to | 15 | %
Emerging market wealth | 0 | % | to | 15 | %
Alternative credit | 0 | % | to | 15 | %
Other | 0 | % | to | 5 | %
Pension assets are classified into three levels. Level 1 asset values are derived from quoted prices which are available in active markets as of the report date. Level 2 asset values are derived from other than quoted prices in active markets included in Level 1, which are either directly or indirectly observable as of the report date. Level 3 asset values are derived from unobservable pricing inputs that are not corroborated by market data or other objective sources. Level 1 Investments Equity securities are valued at the latest quoted prices taken from the primary exchange on which the security trades. Mutual funds are valued at the net asset value (NAV) of shares held at year-end. Level 2 Investments Fixed income securities, including government issued debt, corporate debt,asset-backed and structured debt securities are valued using the latest bid prices or valuations based on a matrix system (which considers such factors as benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and other reference data including market research publications. Derivatives, which consist mainly of interest rate swaps, are valued using a discounted cash flow pricing model based on observable market data. Level 3 Investments Hedge funds and private equity funds are valued at the NAV at year-end. The values assigned to private equity funds are based upon assessments of each underlying investment, incorporating valuations that consider the evaluation of financing and sale transactions with third parties, expected cash flows and market-based information, including comparable transactions, and performance multiples among other factors. Real estate investments are based on third party appraisals. Investments Measured Using NAV per Share Practical Expedient The investment funds’ portfolio invested in the following: Global Equity, that invests in equity securities of various market sectors including industrial materials, consumer discretionary goods and services, financial infrastructure, technology, and health care; Emerging Markets that invest in equity markets within financial services, consumer goods and services, energy, and technology; and Fixed Income. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair value. Furthermore, while the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in different fair value measurements at the reporting date. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of the fair value of assets and their placement within the fair value hierarchy. The levels assigned to the defined benefit plan assets as of December 31, 2016 and 2015 are summarized in the tables below:
|  | 2016
|  | U.S. plan assets |  | Non-U.S. plan assets |  | Total
Level 1 |  |  |  |  |  |
Cash and cash equivalents |  | $ | 15 |  |  | $ | 83 |  |  | $ | 98 |
Global large cap equity |  | — |  |  | 14 |  |  | 14 |
U.S. large cap equity |  | 60 |  |  | 6 |  |  | 66 |
Global mid/small cap equity |  | — |  |  | 5 |  |  | 5 |
U.S. mid/small cap equity |  | 238 |  |  | 24 |  |  | 262 |
Mutual funds – global equity |  | 149 |  |  | 2 |  |  | 151 |
Mutual funds – U.S. equity |  | 214 |  |  | — |  |  | 214 |
Mutual funds – fixed income |  | 92 |  |  | — |  |  | 92 |
|  | 768 |  |  | 134 |  |  | 902 |
Level 2 |  |  |  |  |  |
Government issued debt securities |  | 49 |  |  | 514 |  |  | 563 |
Corporate debt securities |  | 75 |  |  | 61 |  |  | 136 |
Asset backed securities |  | 11 |  |  | 2 |  |  | 13 |
Structured debt |  | — |  |  | 695 |  |  | 695 |
Insurance contracts |  | — |  |  | 16 |  |  | 16 |
Derivatives |  | — |  |  | 98 |  |  | 98 |
Investment funds – fixed income |  | 2 |  |  | 496 |  |  | 498 |
Investment funds – global equity |  | — |  |  | 82 |  |  | 82 |
Investment funds – emerging markets |  | — |  |  | — |  |  | — |
|  | 137 |  |  | 1,964 |  |  | 2,101 |
Level 3 |  |  |  |  |  |
Investment funds – real estate |  | 85 |  |  | 47 |  |  | 132 |
Hedge funds |  | — |  |  | 207 |  |  | 207 |
Private equity |  | 22 |  |  | 193 |  |  | 215 |
Real estate – direct |  | 17 |  |  | 5 |  |  | 22 |
|  | 124 |  |  | 452 |  |  | 576 |
Total assets in fair value hierarchy |  | 1,029 |  |  | 2,550 |  |  | 3,579 |
Investments measured at NAV Practical Expedient (a) |  |  |  |  |  |
Investment funds – fixed income |  | 77 |  |  | 110 |  |  | 187 |
Investment funds – global equity |  | 26 |  |  | 243 |  |  | 269 |
Investment funds – emerging markets |  | 23 |  |  | — |  |  | 23 |
Hedge funds |  | — |  |  | 186 |  |  | 186 |
Investment funds – real estate |  | — |  |  | 57 |  |  | 57 |
|  | 126 |  |  | 596 |  |  | 722 |
Total investments at fair value |  | $ | 1,155 |  |  | $ | 3,146 |  |  | $ | 4,301 |
|  | 2015
|  | U.S. plan assets |  | Non-U.S. plan assets |  | Total
Level 1 |  |  |  |  |  |
Cash and cash equivalents |  | $ | 40 |  |  | $ | 132 |  |  | $ | 172 |
U.S. large cap equity |  | 62 |  |  | 7 |  |  | 69 |
U.S. mid/small cap equity |  | 231 |  |  | 18 |  |  | 249 |
Mutual funds – global equity |  | 164 |  |  | 2 |  |  | 166 |
Mutual funds – U.S. equity |  | 194 |  |  | — |  |  | 194 |
Mutual funds – fixed income |  | 134 |  |  | — |  |  | 134 |
|  | 825 |  |  | 159 |  |  | 984 |
Level 2 |  |  |  |  |  |
Government issued debt securities |  | 43 |  |  | 381 |  |  | 424 |
Corporate debt securities |  | 71 |  |  | 86 |  |  | 157 |
Asset backed securities |  | 15 |  |  | 4 |  |  | 19 |
Structured debt |  | — |  |  | 697 |  |  | 697 |
Insurance contracts |  | — |  |  | 17 |  |  | 17 |
Derivatives |  | — |  |  | 84 |  |  | 84 |
Investment funds – fixed income |  | 2 |  |  | 470 |  |  | 472 |
Investment funds – global equity |  | — |  |  | 70 |  |  | 70 |
Investment funds – emerging markets |  | — |  |  | 46 |  |  | 46 |
|  | 131 |  |  | 1,855 |  |  | 1,986 |
Level 3 |  |  |  |  |  |
Investment funds – real estate |  | 74 |  |  | 42 |  |  | 116 |
Hedge funds |  | 2 |  |  | 223 |  |  | 225 |
Private equity |  | 26 |  |  | 255 |  |  | 281 |
Real estate – direct |  | 16 |  |  | 4 |  |  | 20 |
|  | 118 |  |  | 524 |  |  | 642 |
Total assets in fair value hierarchy |  | 1,074 |  |  | 2,538 |  |  | 3,612 |
Investments measured at NAV Practical Expedient (a) |  |  |  |  |  |
Investment funds – fixed income |  | 69 |  |  | 115 |  |  | 184 |
Investment funds – global equity |  | 25 |  |  | 266 |  |  | 291 |
Investment funds – emerging markets |  | 21 |  |  | — |  |  | 21 |
Hedge funds |  | — |  |  | 189 |  |  | 189 |
Investment funds – real estate |  | — |  |  | 54 |  |  | 54 |
|  | 115 |  |  | 624 |  |  | 739 |
Total investments at fair value |  | $ | 1,189 |  |  | $ | 3,162 |  |  | $ | 4,351 |
(a) In accordance with ASU No. 2015-07, certain investments that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. Accrued income excluded from the tables above is as follows:
| 2016 |  | 2015
U.S. plan assets | $ | 1 |  |  | $ | 1 |
Non-U.S. plan assets | 6 |  |  | 7 |
Plan assets include $177 and $171 of the Company’s common stock at December 31, 2016 and 2015. The following tables reconcile the beginning and ending balances of plan assets measured using significant unobservable inputs (Level 3).
|  | Hedge funds |  | Private equity |  | Real estate |  | Total
Balance at January 1, 2015 |  | $ | 252 |  |  | $ | 333 |  |  | $ | 110 |  |  | $ | 695 |
Foreign currency translation |  | (11 | ) |  | (16 | ) |  | (4 | ) |  | (31 | )
Asset returns – assets held at reporting date |  | (7 | ) |  | (17 | ) |  | 11 |  |  | (13 | )
Asset returns – assets sold during the period |  | 17 |  |  | 54 |  |  | — |  |  | 71 |
Purchases, sales and settlements, net |  | (26 | ) |  | (73 | ) |  | 19 |  |  | (80 | )
Balance at December 31, 2015 |  | 225 |  |  | 281 |  |  | 136 |  |  | 642 |
Foreign currency translation |  | (37 | ) |  | (42 | ) |  | (4 | ) |  | (83 | )
Asset returns – assets held at reporting date |  | 24 |  |  | 2 |  |  | 10 |  |  | 36 |
Asset returns – assets sold during the period |  | 1 |  |  | 36 |  |  | — |  |  | 37 |
Purchases, sales and settlements, net |  | (6 | ) |  | (62 | ) |  | 12 |  |  | (56 | )
Balance at December 31, 2016 |  | $ | 207 |  |  | $ | 215 |  |  | $ | 154 |  |  | $ | 576 |
The following table presents additional information about the pension plan assets valued using net asset value as a practical expedient:
| Fair Value | Redemption Frequency | Redemption Notice Period
Balance at December 31, 2016 |  |  |
Investment funds – fixed income | $ | 187 |  | Daily | 1 - 15 days
Investment funds – global equity | 269 |  | Monthly | 1 - 30 days
Investment funds – emerging markets | 23 |  | Daily | 30 days
Hedge funds | 186 |  | Monthly | 5 - 45 days
Investment funds – real estate | 57 |  | Weekly | 2 days
Balance at December 31, 2015 |  |  |
Investment funds – fixed income | $ | 184 |  | Daily | 1 - 15 days
Investment funds – global equity | 291 |  | Monthly | 1 - 30 days
Investment funds – emerging markets | 21 |  | Daily | 30 days
Hedge funds | 189 |  | Monthly | 5 - 45 days
Investment funds – real estate | 54 |  | Weekly | 2 days
The pension plan assets valued using net asset value as a practical expedient do not have any unfunded commitments. Pension assets and liabilities included in the Consolidated Balance Sheets are:
|  | 2016 |  | 2015
Non-current assets |  | $ | 14 |  |  | $ | 8 |
Current liabilities |  | 8 |  |  | 39 |
Non-current liabilities |  | 469 |  |  | 609 |
The Company’s current liability at December 31, 2016, represents the expected required payments to be made for unfunded plans over the next twelve months. Total estimated 2017 employer contributions are $60 for the Company’s pension plans. Changes in the net loss and prior service credit for the Company’s pension plans were:
|  | 2016 |  | 2015 |  | 2014
|  | Net loss |  | Prior service |  | Net loss |  | Prior service |  | Net loss |  | Prior service
Balance at January 1 |  | $ | 2,320 |  |  | $ | (54 | ) |  | $ | 2,423 |  |  | $ | (71 | ) |  | $ | 2,466 |  |  | $ | (94 | )
Reclassification to net periodic benefit cost |  | (114 | ) |  | 11 |  |  | (105 | ) |  | 13 |  |  | (120 | ) |  | 16 |
Current year loss/(gain) |  | 13 |  |  | — |  |  | 95 |  |  | — |  |  | 174 |  |  | — |
Amendments |  | — |  |  | 3 |  |  | — |  |  | — |  |  | — |  |  | 3 |
Foreign currency translation |  | (187 | ) |  | 8 |  |  | (93 | ) |  | 4 |  |  | (97 | ) |  | 4 |
Balance at December 31 |  | $ | 2,032 |  |  | $ | (32 | ) |  | $ | 2,320 |  |  | $ | (54 | ) |  | $ | 2,423 |  |  | $ | (71 | )
The estimated portions of the net losses and net prior service that are expected to be recognized as components of net periodic benefit cost / (credit) in 2017 are $93 and $(11). Expected future benefit payments as of December 31, 2016 are:
| U.S. plans |  | Non-U.S. plans
2017 | $ | 117 |  |  | $ | 146 |
2018 | 114 |  |  | 150 |
2019 | 117 |  |  | 153 |
2020 | 115 |  |  | 156 |
2021 | 108 |  |  | 156 |
2022 - 2026 | 526 |  |  | 813 |
The weighted average actuarial assumptions used to calculate the benefit obligations at December 31 are:
U.S. Plans |  | 2016 |  | 2015 |  | 2014
Discount rate |  | 4.2 | % |  | 4.4 | % |  | 4.0 | %
Compensation increase |  | 4.6 | % |  | 4.6 | % |  | 4.6 | %
Non-U.S. Plans |  | 2016 |  | 2015 |  | 2014
Discount rate |  | 2.7 | % |  | 3.7 | % |  | 3.4 | %
Compensation increase |  | 3.3 | % |  | 2.9 | % |  | 2.7 | %
The weighted average actuarial assumptions used to calculate pension expense for each year were:
U.S. Plans |  | 2016 |  | 2015 |  | 2014
Discount rate - service cost |  | 4.9 | % |  | 4.0 | % |  | 4.8 | %
Discount rate - interest cost |  | 3.5 | % |  | 4.0 | % |  | 4.8 | %
Compensation increase |  | 4.6 | % |  | 4.6 | % |  | 3.0 | %
Long-term rate of return |  | 8.0 | % |  | 8.0 | % |  | 8.0 | %
Non-U.S. Plans |  | 2016 |  | 2015 |  | 2014
Discount rate - service cost |  | 3.9 | % |  | 3.4 | % |  | 4.4 | %
Discount rate - interest cost |  | 3.2 | % |  | 3.4 | % |  | 4.4 | %
Compensation increase |  | 2.9 | % |  | 2.7 | % |  | 3.2 | %
Long-term rate of return |  | 5.4 | % |  | 5.2 | % |  | 6.4 | %
The expected long-term rates of return are determined at each measurement date based on a review of the actual plan assets, the target allocation, and the historical returns of the capital markets. The U.S. plan’s 2016 assumed asset rate of return was based on a calculation using underlying assumed rates of return of 9.8% for equity securities and alternative investments, 4.4% for debt securities and 5.0% for real estate. The rate of return used for equity securities and alternative investments was based on the total return of the S&P 500 for the 25 year period ended December 31, 2015. The Company believes that the equity securities included in the S&P 500 are representative of the equity securities and alternative investments held by its U.S. plan, and that this period provides a sufficient time horizon as a basis for estimating future returns. The rate of return used for debt securities is consistent with the U.S. plan discount rate and the return on AA corporate bonds with duration equal to the plan’s liabilities. The underlying debt securities in the plan are primarily invested in various corporate and government agency securities and are benchmarked against returns on AA corporate bonds. The U.K. plan’s 2016 assumed asset rate of return was based on a calculation using underlying assumed rates of return of 9.0% for equity securities and alternative investments, 3.7% for debt securities and 5.0% for real estate. The assumed rate of return for equity securities and alternative investments represents the weighted average 25 year return of equity securities in the related markets. The Company believes that the equity securities included in the related market indexes are representative of the equity securities and alternative investments held by its U.K. plan, and that this period provides a sufficient time horizon as a basis for estimating future returns. Other Postretirement Benefit Plans. The Company sponsors unfunded plans to provide health care and life insurance benefits to pensioners and survivors. Generally, the medical plans pay a stated percentage of medical expenses reduced by deductibles and other coverages. Life insurance benefits are generally provided by insurance contracts. The Company reserves the right, subject to existing agreements, to change, modify or discontinue the plans. A measurement date of December 31 was used for the plans presented below. The components of net postretirement benefits cost are as follows:
Other Postretirement Benefits | 2016 |  | 2015 |  | 2014
Service cost | $ | — |  |  | $ | 1 |  |  | $ | 2 |
Interest cost | 6 |  |  | 7 |  |  | 12 |
Amortization of prior service credit | (41 | ) |  | (37 | ) |  | (34 | )
Amortization of actuarial loss | 5 |  |  | 4 |  |  | 6 |
Net periodic benefit credit | $ | (30 | ) |  | $ | (25 | ) |  | $ | (14 | )
Changes in the benefit obligations were:
|  | 2016 |  | 2015
Benefit obligations at January 1 |  | $ | 171 |  |  | $ | 241 |
Service cost |  | — |  |  | 1 |
Interest cost |  | 6 |  |  | 7 |
Amendments |  | — |  |  | (52 | )
Actuarial loss / (gain) |  | 7 |  |  | (19 | )
Acquisitions |  | — |  |  | 20 |
Curtailment |  | — |  |  | (3 | )
Benefits paid |  | (15 | ) |  | (17 | )
Foreign currency translation |  | (2 | ) |  | (7 | )
Benefit obligations at December 31 |  | $ | 167 |  |  | $ | 171 |
Changes in the net loss and prior service credit for the Company’s postretirement benefit plans were:
|  | 2016 |  | 2015 |  | 2014
|  | Net loss |  | Prior service |  | Net loss |  | Prior service |  | Net loss |  | Prior service
Balance at January 1 |  | $ | 47 |  |  | $ | (225 | ) |  | $ | 69 |  |  | $ | (211 | ) |  | $ | 97 |  |  | $ | (246 | )
Reclassification to net periodic benefit cost |  | (5 | ) |  | 41 |  |  | (4 | ) |  | 37 |  |  | (6 | ) |  | 34 |
Current year loss |  | 7 |  |  | — |  |  | (18 | ) |  | — |  |  | (24 | ) |  | — |
Amendments |  | — |  |  | — |  |  | — |  |  | (51 | ) |  | — |  |  | — |
Foreign currency translation |  | — |  |  | 2 |  |  | — |  |  | — |  |  | 2 |  |  | 1 |
Balance at December 31 |  | $ | 49 |  |  | $ | (182 | ) |  | $ | 47 |  |  | $ | (225 | ) |  | $ | 69 |  |  | $ | (211 | )
The estimated portions of the net losses and prior service credits that are expected to be recognized as components of net periodic benefit cost/(credit) in 2017 are $5 and $(41). In 2015, the U.S. plan was amended to eliminate or reduce certain health and life insurance coverage benefits. Expected future benefit payments, as of December 31, 2016, net of expected Medicare Part D subsidies of $4 in the aggregate are:
| Benefit Payments
2017 | $ | 16 |
2018 | 15 |
2019 | 14 |
2020 | 14 |
2021 | 13 |
2022 - 2026 | 58 |
The assumed health care cost trend rates at December 31, 2016 are as follows:
Health care cost trend rate assumed for 2017 | 4.0 | %
Rate that the cost trend rate gradually declines to | 3.1 | %
Year that the rate reaches the rate it is assumed to remain | 2035 |
A one-percentage-point change in assumed health care cost trend rates would have the following effects:
|  | One percentage point
|  | Increase |  | Decrease
Effect on total service and interest cost |  | $ | 1 |  |  | $ | 1 |
Effect on postretirement benefit obligation |  | $ | 8 |  |  | $ | 7 |
Weighted average discount rates used to calculate the benefit obligations at the end of each year and the cost for each year are presented below.
| 2016 |  | 2015 |  | 2014
Benefit obligations | 4.0 | % |  | 3.9 | % |  | 4.0 | %
Service cost | 4.9 | % |  | 4.0 | % |  | 4.8 | %
Interest cost | 3.6 | % |  | 4.0 | % |  | 4.8 | %
Employee Savings Plan. The Company sponsors a Savings Investment Plan which covers substantially all U.S. salaried employees who are at least 21 years of age. The Company matches up to 50% of 3% of a participant’s compensation and the total Company contributions were $2 in each of the last three years. Employee Stock Purchase Plan. The Company sponsors an Employee Stock Purchase Plan which covers all U.S. employees with one or more years of service who are non-officers and non-highly compensated as defined by the Internal Revenue Code. Eligible participants contribute 85% of the quarter-ending market price towards the purchase of each common share. The Company’s contribution is equivalent to 15% of the quarter-ending market price. Total shares purchased under the plan in 2016 and 2015 were 26,299 and 25,917 and the Company’s contributions were less than $1 in both years.

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- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
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