For purposes of this chapter
(1) the term agency means an Executive agency, but does not include the Government Accountability Office; and
(2) the term detail means
(A) the assignment or loan of an employee of an agency to a private sector organization without a change of position from the agency that employs the individual, or
(B) the assignment or loan of an employee of a private sector organization to an agency without a change of position from the private sector organization that employs the individual,
whichever is appropriate in the context in which such term is used.