34 Supplementary information on the statement of cash flows

Changes in operating assets and liabilities

In CHF million   2015   2014
Trade and other receivables   (3)   4
Inventories   (30)   (7)
Other non-financial assets   (9)   (41)
Trade and other payables   (77)   (85)
Provisions   248   (40)
Other non-financial liabilities   (51)   (22)
Defined benefit obligations   56   (22)
Total changes in operating assets and liabilities   134   (213)

Other cash flows from financing activities

In 2015, other cash inflows from financing activities amount to CHF 2 million (prior year: cash outflows of CHF 14 million). This relates mainly to payments in connection with hedging contracts and the commitment fee for the guaranteed credit limit.

Non-cash investing and financing transactions

Additions to property, plant and equipment include additions from finance leases amounting to CHF 9 million (prior year: CHF 13 million). As a result of changes in the assumptions made in estimating the provisions for dismantling and restoration costs, a decrease of CHF 55 million net was recognised in property, plant and equipment (prior year: increase of CHF 157 million). See Note 23.