Accounting policies for the consolidated balance sheet and profit and loss account (continued)
Critical accounting policies (continued)
Employee benefits
Group companies operate various defined benefit retirement plans covering a significant number of ING’s employees.
The liability recognised in the balance sheet in respect of the defined benefit pension plans is the present value of the defined benefit obligation at the balance sheet date less the fair value of the plan assets, together with adjustments for unrecognised actuarial gains and losses, and unrecognised past service costs.
The determination of the defined benefit plan liability is based on internal and external actuarial models and calculations. The defined benefit obligation is calculated using the projected unit credit method. Inherent in these actuarial models are assumptions including discount rates, rates of increase in future salary and benefit levels, mortality rates, trend rates in health care costs, consumer price index, and the expected return on plan assets. The assumptions are based on available market data and the historical performance of plan assets, and are updated annually.
The actuarial assumptions may differ significantly from the actual results due to changes in market conditions, economic and mortality trends, and other assumptions. Any changes in these assumptions could have a significant impact on the defined benefit plan liabilities and future pension costs. The effects of changes in actuarial assumptions and experience adjustments are not recognised in the profit and loss account unless the accumulated changes exceed 10% of the greater of the defined benefit obligation and the fair value of the plan assets and the excess is then amortised over the employees’ expected average remaining working lives. See Note 21 ‘Other liabilities’ for the weighted averages of basic actuarial assumptions in connection with pension and other post-employment benefits.
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