1
general::
Phrase(s): part and parcel
Go to bag and baggage.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
An essential or basic element, as in Traveling is part and parcel of Zach's job. Used since the 15th century as a legal term, with part meaning "a portion" and parcel "something integral with a whole," this idiom began to be used more loosely from about 1800. Although both nouns have the same basic meaning, the redundancy lends emphasis.
American Heritage Idioms