Manning is focused on much smaller goals -- showing improvement week to week.
"We talk about getting better," Manning said. "All the other stuff, that's not what we talk about. If we get better each week, we'll see what happens from there."
Manning extended his franchise record with his 30th touchdown pass on the game's opening drive, became the fastest quarterback to reach 5,000 career completions and earned his record 12th 10-win season as a starter.
That helped the Broncos (10-3) move a half-game ahead of New England and Baltimore for the second-best record in the AFC. Denver visits Baltimore next week in a game that will help decide who gets a first-round playoff bye.
"That would be great but we can't really concentrate on that," said cornerback Champ Bailey, who intercepted a pass. "We need to concentrate on what we need to do to get better. Just keep plugging along and that thing will take care of itself."
"I took my father off life support (voice cracking), and that's not easy to do," Allen said. "So was it hard? Yeah, it was hard. But I know my father would want me to be here with this football team, and I wanted to be here with this football team. So I'm sure you guys can imagine it wasn't an easy situation."
Manning, who joined Brett Favre as the only quarterbacks in NFL history with 5,000 career completions, converted a third-and-11 with a perfectly placed 22-yard pass to Demaryius Thomas. Manning followed that with a 29-yard completion to Eric Decker, but the drive stalled after a pass-interference call on Matt Giordano gave the Broncos a first down at the 1. Matt Prater's 20-yard field goal made it 16-7.
Mike Goodson then made the ill-advised decision to return a kick from 8 yards deep in the end zone, forcing Oakland to start a drive at the 8. Von Miller then beat Khalif Barnes for a sack on third down, stripping the ball from Palmer. Mitch Unrein recovered at the 2 and Moreno scored two plays later to make it 23-7.
"That's something we haven't been good on the past couple of weeks including last week," Manning said. "To do that tonight I think we can build off of that."
The only remaining drama was whether quarterback project Terrelle Pryor would get his first action of the season for Oakland. He didn't, giving the frustrated Raiders fans yet another reason to be upset even though Palmer added a 56-yard TD pass to Darrius Heyward-Bey and finished with 273 yards passing.
"To rack up this many losses in a row in the fashion that we've done is just extremely frustrating," Palmer said.
Prater added two field goals after Broncos' drives stalled inside the Oakland 20 as Denver extended the lead to 13-0. The momentum shifted after Phillip Adams' intercepted an underthrown pass from Manning to Matthew Willis in the end zone.
Oakland responded with an 80-yard drive capped by a 6-yard screen pass to McFadden.
Copyright 2012 by The Associated Press