Among the details NFL commissioner Roger Goodell revealed to owners Tuesday at the league's meeting in Rosemont, Ill., is that in the next proposed agreement players will receive a 48 percent share of "all revenue," without the $1-billion-plus credit off the top that had been a point of contention in earlier negotiations, according to sources familiar with the presentation.

Under the new formula being negotiated, players will receive 48 percent of all revenue and will never dip below a 46.5 percent take of the money, sources said.

In the previous collective bargaining agreement, players received approximately 60 percent of "total revenue" but that did not include $1 billion that was designated as an expense credit off the top of the $9 billion revenue model. Owners initially were seeking another $1 billion in credit only to reduce that amount substantially before exercising the lockout on March 13.

Ultimately, the two sides have decided to simplify the formula, which will eliminate some tedious accounting audits of the credit the players have allowed in the previous deal. NFLPA executive director DeMaurice Smith has stated that players were actually receiving around 53 percent of all revenues instead of the much advertised 60 percent.

Owners still will get some expense credits that will allow funding for new stadium construction, sources said.

A rookie wage scale will be part of the new deal but is still being "tweaked," and the much-discussed 18-game regular season will be designated only as a negotiable item with the players and at no point is mandated in a potential agreement.

An expansion of the Thursday night TV package to 16 games beginning in 2014, which could be a source of new revenue for the league, is also being weighed but is not a part of these talks.

Current TV deals make 2014 the target year for an extended Thursday package, not 2012, according to a source.

Goodell said no discussions were held Tuesday on a potential full-season Thursday night TV package. With record ratings last season, the NFL's value to its broadcast partners never has been higher.

As revenues are projected to possibly double by 2016 to $18 billion annually, retired players will benefit from improved health and pension funding that is expected to increase significantly.

Players believe they can justify a 48 percent take because of the projected revenue growth, as well as built-in mechanisms that require teams to spend close to 100 percent of the salary cap, a source told ESPN.com's John Clayton. The mandatory minimum spending increase is an element that concerns lower-revenue clubs, sources say.