Liability 

a certain or probable future sacrifice of economic benefits arising from present obligations of a particular entity to transfer assets or to provide services to other entities in the future as a result of a past transactions(s) or event(s). three essential characteristics: a)    It embodies a present duty or responsibility to one or more other entities that entails settlement by probable future transfer or use of assets at a specified or determinable date, on occurrence of a specified event, or on demand; b)    The duty or responsibility obligates a particular entity, leaving it little or no discretion to avoid the future sacrifice; and c)    The transaction or other event obligating the entity has already happened.