In view of the obfuscation, here is the Magisterium on the facts, from Vatican II:
“But the college or body of bishops has no authority unless it is understood together with the Roman Pontiff, the successor of Peter as its head. The pope’s power of primacy over all, both pastors and faithful, remains whole and intact. In virtue of his office, that is as Vicar of Christ and pastor of the whole Church, the Roman Pontiff has full, supreme and universal power over the Church. And he is always free to exercise this power. The order of bishops, which succeeds to the college of apostles and gives this apostolic body continued existence, is also the subject of supreme and full power over the universal Church, provided we understand this body together with its head the Roman Pontiff and never without this head.(27*)
This power can be exercised only with the consent of the Roman Pontiff.
“The supreme power in the universal Church, which this college enjoys, is exercised in a solemn way in an ecumenical council.
A council is never ecumenical unless it is confirmed or at least accepted as such by the successor of Peter; and it is prerogative of the Roman Pontiff to convoke these councils, to preside over them and to confirm them.(29*)”
[Vatican II, *Dogmatic Constitution on the Church (
Lumen Gentium) #22].
That is why an EWTN historian and theologian can report these facts:
ewtn.com/vexperts/showresult.asp?RecNum=583237&Forums=0&Experts=0&Days=2009&Author=&Keyword=Ecumenical+Councils&pgnu=1&groupnum=0&record_bookmark=3&ORDER_BY_TXT=ORDER+BY+ReplyDate+DESC&start_at=
Answer by Matthew Bunson (EWTN) on Oct-20-2009:
“According to the Code of Canon Law” [see canons 338, 341], “an ecumenical council must be convened by the Pope, and the decrees must be sanctioned and promulgated by the Holy See if they are to have binding force….The most important of councils are the general, or ecumenical, councils of the Church, bringing together the bishops and representatives from the entire world. An often monumental assembly, these ecumenical councils act with the highest of all possible authority and thus must be summoned by the pope and its acts approved by him. There have been twenty-one general councils in history; the last was Vatican Council II (1962-1965). By custom, the first council was described in Acts (15:6) when ‘The apostles and the elders were gathered together’ at Jerusalem.”
The Code of Canon Law is also quite clear.
“
Can. 338 ß1 It is the prerogative of the Roman Pontiff alone to summon an Ecumenical Council, to preside over it personally or through others, to transfer, suspend or dissolve the Council, and to approve its decrees.
“
ß2 It is also the prerogative of the Roman Pontiff to determine the matters to be dealt with in the Council, and to establish the order to be observed. The Fathers of the Council may add other matters to those proposed by the Roman Pontiff, but these must be approved by the Roman Pontiff.”
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Can. 341 ß1 The decrees of an Ecumenical Council do not oblige unless they are approved by the Roman Pontiff as well as by the Fathers of the Council, confirmed by the Roman Pontiff and promulgated by his direction.”
“**ß2 **If they are to have binding force, the same confirmation and promulgation is required for decrees which the College of Bishops issues by truly collegial actions in another manner introduced or freely accepted by the Roman Pontiff.”