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Pensions and Other Postretirement Benefits
12 Months Ended
Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]  
Pensions and Other Postretirement Benefits
Pension and Other Postretirement Benefits
 
Defined Benefit Pension Plan  Effective January 1, 2005, our previously separate qualified defined benefit pension plan was combined with that of HSBC Finance into a single HSBC North America qualified defined benefit pension plan (either the "HSBC North America Pension Plan" or the "Plan") which facilitated the development of a unified employee benefit policy and unified employee benefit plan administration for HSBC companies operating in the U.S. The following table reflects the portion of pension expense and its related components of the HSBC North America Pension Plan which has been allocated to us and is recorded in our consolidated statement of income (loss). We have not been allocated any portion of the Plan's net pension liability.
Year Ended December 31,
2014
 
2013
 
2012
 
(in millions)
Service cost – benefits earned during the period
$
7

 
$
4

 
$
15

Interest cost on projected benefit obligation
70

 
71

 
67

Expected return on plan assets
(87
)
 
(83
)
 
(91
)
Amortization of net actuarial loss
34

 
49

 
46

Amortization of prior service cost (benefit)

 

 
(5
)
Curtailment benefit recognized

 

 
(31
)
Pension expense
$
24

 
$
41

 
$
1


Pension expense in 2012 reflects the recognition of a curtailment benefit associated with the decision in 2012 to cease all future contributions under the Cash Balance formula and freeze the Plan effective January 1, 2013. While participants with existing balances continue to receive interest credits until the account is distributed, they no longer accrue benefits beginning in 2013.
During December 2011, an amendment was made to the Plan effective January 1, 2011 to amend the benefit formula, thus increasing the benefits associated with services provided by certain employees in past periods. The financial impact is being amortized to pension expense over the remaining life expectancy of the participants. As a result of the decision to cease all future contributions under the Cash Balance formula and freeze the Plan effective January 1, 2013, the remaining unamortized prior service credit was recognized during 2012.
The assumptions used in determining pension expense of the HSBC North America Pension Plan are as follows:
 
2014
 
2013
 
2012
Discount rate
4.80
%
 
3.95
%
 
4.60
%
Salary increase assumption
*

 
*

 
2.75

Expected long-term rate of return on Plan assets
6.00

 
6.00

 
7.00

 
* As the result of decision to cease all future contributions under the cash balance formula and to freeze the plan effective January 1, 2013, a salary increase assumption no longer applies to the Plan.
Long-term historical rates of return in conjunction with our current outlook of return rates over the term of the pension obligation are considered in determining an appropriate long-term rate of return on Plan assets. In this regard, a "best estimate range" of expected rates of return on Plan assets is established by our actuaries based on a portfolio of passive investments considering asset mix upon which a distribution of compound average returns for such portfolio is calculated over a 20 year horizon. This approach, however, ignores the characteristics and performance of the specific investments the pension plan is invested in, their historical returns and their performance against industry benchmarks. In evaluating the range of potential outcomes, a "best estimate range" is established between the 25th and 75th percentile. In addition to this analysis, we also seek the input of the firm which provides us pension advisory services. This firm performs an analysis similar to that done by our actuaries, but instead uses real investment types and considers historical fund manager performance. In this regard, we also focus on the range of possible outcomes between the 25th and 75th percentile, with a focus on the 50th percentile. The combination of these analyses creates a range of potential long-term rate of return assumptions from which we determine an appropriate rate. Given the Plan’s current allocation of equity and fixed income securities and using investment return assumptions which are based on long term historical data, the long term expected return for plan assets is reasonable.
Investment Strategy For Plan Assets  The primary objective of the HSBC North America Pension Plan is to provide eligible employees with regular pension benefits. Since the Plan is governed by the Employee Retirement Security Act of 1974 ("ERISA"), ERISA regulations serve as guidance for the management of plan assets. In this regard, an Investment Committee (the "Committee") for the Plan has been established and its members have been appointed by the Chief Executive Officer as authorized by the Board of Directors of HSBC North America. The Committee is responsible for establishing the funding policy and investment objectives supporting the Plan including allocating the assets of the Plan, monitoring the diversification of the Plan’s investments and investment performance, assuring the Plan does not violate any provisions of ERISA and the appointment, removal and monitoring of investment advisers and the trustee. Consistent with prudent standards for preservation of capital and maintenance of liquidity, the goal of the Plan is to earn the highest possible total rate of return consistent with the Plan’s tolerance for risk as periodically determined by the Committee. A key factor shaping the Committee’s attitude towards risk is the generally long term nature of the underlying benefit obligations. The asset allocation decision reflects this long term horizon as well as the ability and willingness to accept some short-term variability in the performance of the portfolio in exchange for the expectation of competitive long-term investment results for its participants.
The Plan’s Investment Committee utilizes a proactive approach to managing the Plan’s overall investment strategy. During the past year, this resulted in the Committee conducting four quarterly meetings including two strategic reviews and two in-depth manager performance reviews. These quarterly meetings are supplemented by the pension investment staff tracking actual investment manager performance versus the relevant benchmark and absolute return expectations on a monthly basis. The pension investment staff also monitors adherence to individual investment manager guidelines via a quarterly compliance certification process. A sub-committee consisting of the pension investment staff and three members of the investment committee are delegated responsibility for conducting in-depth reviews of managers performing below expectation. This sub-committee also provides replacement recommendations to the Committee when manager performance fails to meet expectations for an extended period. In 2011, the Committee shifted the Plan's target asset allocation to 40 percent equities, 59 percent fixed income securities and 1 percent cash and maintained this mix through 2014. There is a risk that market movements in equity prices and interest rates could result in asset values which, taken together with any future contributions, are insufficient over time to cover the level of projected benefit obligations and these, in turn, could rise with changes in interest rates and participants living longer. The Plan's Investment Committee assesses these risks, taking action when appropriate to adjust investment strategies and contribution levels accordingly. As mentioned above, the Plan's target asst allocation is currently at 59 percent for fixed income securities. Should interest rates rise faster than currently anticipated by the Committee, a shift to a higher percentage of fixed income securities may be made.
In order to achieve the return objectives of the Plan, investment diversification is employed to ensure that adverse results from one security or security class will not have an unduly detrimental effect on the entire portfolio. Diversification is interpreted to include diversification by type, characteristic, and number of investments as well as investment style of investment managers and number of investment managers for a particular investment style. Equity securities are invested in large, mid and small capitalization domestic stocks as well as large and small capitalization international, global and emerging market stocks. During 2014, a new return seeking asset class, "Diversified Credit", was added consisting of high yield debt, emerging market debt and leveraged loans. Fixed income securities are invested in U.S. Treasuries (which may include Treasury Inflation Protected Securities), agencies, corporate bonds, and mortgage and other asset backed securities. Without sacrificing returns or increasing risk, the Committee prefers a limited number of investment manager relationships which improves efficiency of administration while providing economies of scale with respect to fees.
An investment consultant is used to provide investment consulting services such as recommendations on the type of funds to be utilized, appropriate fund managers, and the monitoring of the performance of those fund managers. Plan performance is measured against absolute and relative return objectives. Results are reviewed from both a short-term (less than 1 year) and intermediate term (three to five year i.e. a full market cycle) perspective. Separate account fund managers are prohibited from investing in all HSBC Securities, restricted stock (except Rule 144(a) securities which are not prohibited investments), short-sale contracts, non-financial commodities, investments in private companies, leveraged investments and any futures or options (unless used for hedging purposes and approved by the Committee). Commingled account and limited partnership fund managers however are allowed to invest in the preceding to the extent allowed in each of their offering memoranda. As a result of the low interest rate environment and expectation that interest rates will rise in the future, the Committee mandated the suspension of its previously approved interest rate hedging strategy in June 2009. Outside of the approved interest rate hedging strategy, the use of derivative strategies by investment managers must be explicitly authorized by the Committee. Such derivatives may be used only to hedge an account’s investment risk or to replicate an investment that would otherwise be made directly in the cash market.
The Committee expects total investment performance to meet or exceed the following long-term performance objectives:
A long-term return of 6 percent;
A passive, blended index comprised of 9.5 percent S&P 500, 3 percent Russell 2000, 8 percent EAFE, 3 percent S&P Dev ex-US Small Cap, 7 percent MSCI AC World, 5.5 percent MSCI Emerging Markets, 4 percent High Yield/Emerging Market Debt/Leveraged Loans Blended Benchmark, 59 percent Barclays Long Gov/Credit and 1 percent 90-day T-Bills; and
Above median performance of peer corporate pension plans.
HSBC North America’s overall investment strategy for Plan assets is to achieve a mix of at least 95 percent of investments for long-term growth and up to 5 percent for near-term benefit payments with a wide diversification of asset types, fund strategies, and fund managers. The target sector allocations of Plan assets at December 31, 2014 are as follows:
  
Percentage of
Plan assets at
December 31,
2014
Domestic Large/Mid-Cap Equity
9.5
%
Domestic Small Cap Equity
3.0

International Large Cap Equity
8.0

International Small Cap Equity
3.0

Global Equity
7.0

Emerging Market Equity
5.5

Diversified Credit
4.0

Fixed Income Securities
59.0

Cash or Cash Equivalents
1.0

Total
100.0
%

Plan Assets  A reconciliation of beginning and ending balances of the fair value of net assets associated with the HSBC North America Pension Plan is shown below:
Year Ended December 31,
2014
 
2013
 
(in millions)
Fair value of net Plan assets at beginning of year
$
3,435

 
$
3,485

Cash contributions by HSBC North America
74

 
131

Actual return on Plan assets
551

 
(8
)
Benefits paid
(185
)
 
(173
)
Fair value of net Plan assets at end of year
$
3,875

 
$
3,435


The fair value of Plan assets increased approximately 12.8 percent compared with December 31, 2013 due primarily to significantly decreasing Treasury yields which positively impacted fixed income assets and swaps during 2014, and a $74 million cash contribution to the Plan.
The Pension Protection Act of 2006 requires companies to meet certain pension funding requirements. As a result, during 2009, the Committee revised the Pension Funding Policy to better reflect current marketplace conditions and ensure the Plan’s ability to continue to make lump sum payments to retiring participants. Until the Plan is fully funded, the Pension Funding Policy requires HSBC North America to annually contribute the greater of:
The minimum contribution required under ERISA guidelines;
An amount necessary to ensure the adjusted funding target attainment percentage for the Plan year is equal to or greater than 90 percent; or
Pension expense for the year as determined under current accounting guidance. 
Because the Plan was frozen effective January 1, 2013 and Plan participants no longer accrue benefits, the actuarial present value of benefits is $3,127 million.
As a result, during 2014 HSBC North America made a contribution to the Plan of $74 million. We expect to make additional contributions during 2015.
Accounting principles related to fair value measurements provide a framework for measuring fair value and focuses on an exit price in the principal (or alternatively, the most advantageous) market accessible in an orderly transaction between willing market participants (the "Fair Value Framework"). The Fair Value Framework establishes a three-tiered fair value hierarchy with Level 1 representing quoted prices (unadjusted) in active markets for identical assets or liabilities. Fair values determined by Level 2 inputs are inputs that are observable for the identical asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are inactive, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability and include situations where there is little, if any, market activity for the asset or liability. Transfers between levels of the fair value hierarchy are recognized at the end of each reporting period. The following table presents the fair values associated with the major categories of Plan assets and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair values as of December 31, 2014 and 2013:
 
Fair Value Measurement at December 31, 2014
  
Total
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
(in millions)
Investments at Fair Value:
 
 
 
 
 
 
 
Cash and short term investments
$
81

 
$
81

 
$

 
$

Equity Securities

 

 

 

U.S. Large-cap(1)
330

 
330

 

 

U.S. Small-cap(2)
106

 
106

 

 

International(3)
301

 
36

 
265

 

Global(4)
269

 
103

 
166

 

Emerging Market(5)
205

 

 
205

 

U.S. Treasury
646

 
646

 

 

U.S. Government agency issued or guaranteed
91

 

 
91

 

Obligations of U.S. states and political subdivisions
109

 

 
109

 

Asset-backed securities
32

 

 
12

 
20

U.S. corporate debt securities(6)
1,117

 

 
1,117

 

Foreign debt securities
316

 

 
307

 
9

Emerging Market Debt/High-Yield Debt/Leveraged Loans
131

 
39

 
92

 

Other investments
103

 

 
103

 

Accrued interest
25

 
5

 
20

 

Total investments
3,862

 
1,346

 
2,487

 
29

Receivables:

 

 

 

Receivables from sale of investments in process of settlement
124

 
124

 

 

Derivative financial assets
16

 

 
16

 

Total receivables
140

 
124

 
16

 

Total Assets
4,002

 
1,470

 
2,503

 
29

Derivative financial liabilities
(9
)
 
(8
)
 
(1
)
 

Other liabilities
(118
)
 
(118
)
 

 

Total Liabilities
(127
)
 
(126
)
 
(1
)
 

Total Net Assets
$
3,875

 
$
1,344

 
$
2,502

 
$
29

 
Fair Value Measurement at December 31, 2013   
  
Total
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
(in millions)
Investments at Fair Value:
 
 
 
 
 
 
 
Cash and short term investments
$
106

 
$
106

 
$

 
$

Equity Securities

 

 

 

U.S. Large-cap(1)
303

 
303

 

 

U.S. Small-cap(2)
104

 
104

 

 

International(3)
310

 
28

 
282

 

Global(4)
387

 
65

 
322

 

Emerging Market(5)
206

 

 
206

 

U.S. Treasury
716

 
716

 

 

U.S. Government agency issued or guaranteed
83

 
9

 
74

 

Obligations of U.S. states and political subdivisions
70

 

 
70

 

Asset-backed securities
31

 

 
11

 
20

U.S. corporate debt securities(6)
827

 

 
827

 

Foreign debt securities
279

 

 
268

 
11

Other investments
114

 

 
114

 

Accrued interest
23

 
6

 
17

 

Total investments
3,559

 
1,337

 
2,191

 
31

Receivables:

 

 

 

Receivables from sale of investments in process of settlement
106

 
106

 

 

Derivative financial assets
5

 

 
5

 

Total receivables
111

 
106

 
5

 

Total Assets
3,670

 
1,443

 
2,196

 
31

Derivative financial liabilities
(137
)
 
(13
)
 
(124
)
 

Other liabilities
(98
)
 
(98
)
 

 

Total Liabilities
(235
)
 
(111
)
 
(124
)
 

Total Net Assets
$
3,435

 
$
1,332

 
$
2,072

 
$
31

 
(1) 
This category comprises actively managed enhanced index investments that track the S&P 500 and actively managed U.S. investments that track the Russell 1000.
(2) 
This category comprises actively managed U.S. investments that track the Russell 2000.
(3) 
This category comprises actively managed equity investments in non-U.S. and Canada developed markets that are primarily large-cap, and generally track the MSCI EAFE index. MSCI EAFE is an equity market index of 21 developed market countries in Europe, Australia, Asia and the Far East including Australia, Austria, Belgium, Denmark, Finland, France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, the Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, and the United Kingdom.
(4) 
This category comprises actively and passively managed global investments that track the MSCI AC World Index.
(5) 
This category comprises actively managed emerging market investments that track the MSCI Emerging Markets Index.
(6) 
This category represents predominantly investment grade bonds of U.S. issuers from diverse industries.
The following table provides additional detail regarding the rating of our U.S. corporate debt securities at December 31, 2014:
 
Level 2
 
Level 3
 
Total
 
(in millions)
AAA to AA-(1)
$
69

 
$

 
$
69

A+ to A-(1)
347

 

 
347

BBB+ to Unrated(1)
701

 

 
701

Total
$
1,117

 
$

 
$
1,117

 
(1) 
We obtain ratings on U.S. corporate debt securities from both Moody’s Investor Services and Standard and Poor’s Corporation. In the event the ratings obtained from these agencies differ, the lower of the two ratings is utilized.
Transfers between Level 1 and 2 measurements for Plan assets  There were no transfers between Levels 1 and 2 during 2014.
Information on Level 3 assets and liabilities  The following table summarizes additional information about changes in the fair value of Level 3 assets during 2014 and 2013:
 
 
 
Total Gains and
(Losses) Included in
 
 
 
 
 
 
 
 
 
 
 
Current
Period
Unrealized
Gains (Losses)
  
Jan 1,
2014
 
Income
 
Other
Comp.
Income
 
Purchases
 
Settlement
 
Transfers
Into
Level 3
 
Transfers
Out of
Level 3
 
Dec. 31,
2014
 
 
(in millions)
Asset-backed securities
$
20

 
$

 
$

 
$
1

 
$
(1
)
 
$

 
$

 
$
20

 
$

Foreign debt securities
11

 

 

 
3

 
(5
)
 

 

 
9

 

Total assets
$
31

 
$

 
$

 
$
4

 
$
(6
)
 
$

 
$

 
$
29

 
$

 
 
 
Total Gains and
(Losses) Included in
 
 
 
 
 
 
 
 
 
 
 
Current
Period
UnrealizedGains (Losses)
  
Jan 1,
2013
 
Income
 
Other
Comp.
Income
 
Purchases
 
Settlement
 
Transfers
Into
Level 3
 
Transfers
Out of
Level 3
 
Dec. 31,
2013
 
 
(in millions)
Asset-backed securities
$
43

 
$

 
$
(1
)
 
$

 
$
(21
)
 
$

 
$
(1
)
 
$
20

 
$
4

U.S. corporate debt securities
2

 

 

 

 
(2
)
 

 

 

 

Foreign debt securities
21

 

 

 
5

 
(10
)
 

 
(5
)
 
11

 

Total assets
$
66

 
$

 
$
(1
)
 
$
5

 
$
(33
)
 
$

 
$
(6
)
 
$
31

 
$
4


Valuation techniques for Plan assets  Following is a description of valuation methodologies used for significant categories of Plan assets recorded at fair value.
Securities:  Fair value of securities is generally determined by a third party valuation source. The pricing services generally source fair value measurements from quoted market prices and if not available, the security is valued based on quotes from similar securities using broker quotes and other information obtained from dealers and market participants. For securities which do not trade in active markets, such as fixed income securities, the pricing services generally utilize various pricing applications, including models, to measure fair value. The pricing applications are based on market convention and use inputs that are derived principally from or corroborated by observable market data by correlation or other means. The following summarizes the valuation methodology used for the major security types of our pension plan assets:
Equity securities – Since most of our securities are transacted in active markets, fair value measurements are determined based on quoted prices for the identical security. Equity securities and derivative contracts that are non-exchange traded are primarily investments in common stock funds. The funds permit investors to redeem the ownership interests from the issuer using the end-of-day net asset value ("NAV") per share and there are no significant redemption restrictions. Thus the end-of-day NAV is considered observable.
U.S. Treasury, U.S. government agency issued or guaranteed and Obligations of U.S. States and political subdivisions – As these securities transact in an active market, the pricing services source fair value measurements from quoted prices for the identical security or quoted prices for similar securities with adjustments as necessary made using observable inputs which are market corroborated.
U.S. government sponsored enterprises – For certain government sponsored mortgage-backed securities which transact in an active market, the pricing services source fair value measurements from quoted prices for the identical security or quoted prices for similar securities with adjustments as necessary made using observable inputs which are market corroborated. For government sponsored mortgage-backed securities which do not transact in an active market, fair value is determined using discounted cash flow models and inputs related to interest rates, prepayment speeds, loss curves and market discount rates that would be required by investors in the current market given the specific characteristics and inherent credit risk of the underlying collateral.
Asset-backed securities – Fair value is determined using discounted cash flow models and inputs related to interest rates, prepayment speeds, loss curves and market discount rates that would be required by investors in the current market given the specific characteristics and inherent credit risk of the underlying collateral.
U.S. corporate and foreign debt securities – For non-callable corporate securities, a credit spread scale is created for each issuer. These spreads are then added to the equivalent maturity U.S. Treasury yield to determine current pricing. Credit spreads are obtained from the new issue market, secondary trading levels and dealer quotes. For securities with early redemption features, an option adjusted spread ("OAS") model is incorporated to adjust the spreads determined above. Additionally, the pricing services will survey the broker/dealer community to obtain relevant trade data including benchmark quotes and updated spreads.
Emerging market debt, high-yield debt and leveraged loans - Fair value is determined using the NAV provided on a daily basis. These investment categories are non-exchange traded investments in debt and loan funds. The funds permit investors to redeem the ownership interests from the issuer using the end-of-day NAV per share. On our leveraged loans, a redemption fee of 5 percent is charged to the investor if a withdrawal is made within the first year. As of the December 31, 2014, $39 million of our leveraged loans were under the redemption fee restriction. No significant redemption restrictions exist after the first year. Thus the end-of-day NAV is considered observable.
Derivatives – Derivatives are recorded at fair value. Derivatives traded on an exchange are valued using quoted prices. OTC derivatives, which comprise a majority of derivative contract positions, are valued using valuation techniques. The fair value for the majority of our derivative instruments are determined based on internally developed models that utilize independently-sourced market parameters, including interest rate yield curves, option volatilities, and currency rates. For complex or long-dated derivative products where market data is not available, fair value may be affected by the choice of valuation model and the underlying assumptions about, among other things, the timing of cash flows and credit spreads. The fair values of certain structured derivative products are sensitive to unobservable inputs such as default correlations and volatilities. These estimates are susceptible to significant change in future periods as market conditions change.
Projected benefit obligation  A reconciliation of beginning and ending balances of the projected benefit obligation of the defined benefit pension plan is shown below and reflects the projected benefit obligation of the merged HSBC North America Pension Plan:
 
2014
 
2013
 
(in millions)
Projected benefit obligation at beginning of year
$
3,892

 
$
4,374

Service cost
16

 
11

Interest cost
177

 
176

Actuarial losses (gains)
465

 
(496
)
Benefits paid
(185
)
 
(173
)
Projected benefit obligation at end of year
$
4,365

 
$
3,892


The accumulated benefit obligation for the HSBC North America Pension Plan was $4,365 million and $3,892 million at December 31, 2014 and 2013, respectively. As the projected benefit obligation and the accumulated benefit obligation relate to the HSBC North America Pension Plan, only a portion of this deficit should be considered our responsibility.
The assumptions used in determining the projected benefit obligation of the HSBC North America Pension Plan at December 31 are as follows:
 
2014
 
2013
 
2012
Discount rate
3.95
%
 
4.80
%
 
3.95
%
Salary increase assumption
*

 
*

 
2.75

 
* As the result of decision to cease all future contributions under the cash balance formula and to freeze the plan effective January 1, 2013, a salary increase assumption no longer applies to the Plan.
In addition to the above, mortality rates are an input into our pension liability and attempt to predict the expected life of plan participants. In deriving our estimates, we consider the results of periodic demographic studies of the plan and mortality data provided by the Society of Actuaries.

Estimated future benefit payments for the HSBC North America Pension Plan are as follows:
  
HSBC
North America
 
(in millions)
2015
$
169

2016
172

2017
175

2018
177

2019
181

2020-2024
962


Defined Contribution and Other Supplemental Retirement Plans  We maintain a 401(k) plan covering substantially all employees. Employer contributions to the plan are based on employee contributions. Total expense recognized for this plan was approximately $31 million, $30 million and $30 million in 2014, 2013 and 2012, respectively.
Certain employees are participants in various defined contribution and other non-qualified supplemental retirement plans all of which have been frozen. Total expense recognized for these plans was approximately $3 million in each of 2014, 2013 and 2012.
Postretirement Plans Other Than Pensions  Our employees also participate in plans which provide medical and life insurance benefits to retirees and eligible dependents. These plans cover substantially all employees who meet certain age and vested service requirements. We have instituted dollar limits on payments under the plans to control the cost of future medical benefits. The following table reflects the components of the net periodic postretirement benefit cost:
Year Ended December 31,
2014
 
2013
 
2012
 
(in millions)
Service cost – benefits earned during the period
$

 
$
1

 
$
1

Interest cost on accumulated benefit obligation
3

 
2

 
3

Amortization of net actuarial gain
(1
)
 

 

Amortization of transition obligation

 

 
2

Net periodic postretirement benefit cost
$
2

 
$
3

 
$
6


The assumptions used in determining the net periodic postretirement benefit cost for our postretirement benefit plans are as follows:
 
2014
 
2013
 
2012
Discount rate
4.35
%
 
3.35
%
 
4.25
%
Salary increase assumption
2.75

 
2.75

 
2.75


A reconciliation of the beginning and ending balances of the accumulated postretirement benefit obligation is as follows:
 
2014
 
2013
 
(in millions)
Accumulated benefit obligation at beginning of year
$
59

 
$
70

Service cost

 
1

Interest cost
3

 
2

Actuarial losses (gains)
5

 
(8
)
Benefits paid
(5
)
 
(6
)
Accumulated benefit obligation at end of year
$
62

 
$
59


Our postretirement benefit plans are funded on a pay-as-you-go basis. We currently estimate that we will pay benefits of approximately $5 million relating to our postretirement benefit plans in 2015. The funded status of our postretirement benefit plans was a liability of $62 million at December 31, 2014.
Estimated future benefit payments for our postretirement benefit plans are summarized in the following table.
  
(in millions)
2015
$
5

2016
6

2017
6

2018
6

2019
6

2020-2024
27


The assumptions used in determining the benefit obligation of our postretirement benefit plans at December 31 are as follows:
 
2014
 
2013
 
2012
Discount rate
3.60
%
 
4.35
%
 
3.35
%
Salary increase assumption
3.00

 
2.75

 
2.75


For measurement purposes, 7.0 percent (pre-65) and 6.7 percent (post-65) annual rates of increase in the per capita costs of covered health care benefits were assumed for 2014. These rates are assumed to decrease gradually reaching the ultimate rate of 4.5 percent in 2027, and remain at that level thereafter.
Assumed health care cost trend rates have an effect on the amounts reported for health care plans. A one-percentage point change in assumed health care cost trend rates would increase (decrease) service and interest costs and the postretirement benefit obligation as follows:
 
One Percent
Increase
 
One Percent
Decrease
 
(in millions)
Effect on total of service and interest cost components
$

 
$

Effect on accumulated postretirement benefit obligation
1

 
(1
)