Goodwill Tradenames and Other Assets Schedule of Goodwill by Segment (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 29, 2015
Goodwill [Roll Forward]  
Goodwill $ 1,719,560
Foreign currency adjustment (2,186)
Purchase price adjustment (1) (1,102)
Goodwill 1,716,272
Birds Eye Frozen [Member]  
Goodwill [Roll Forward]  
Goodwill 608,984
Foreign currency adjustment (2,186)
Purchase price adjustment (1) (1,102)
Goodwill 605,696
Duncan Hines Grocery [Member]  
Goodwill [Roll Forward]  
Goodwill 936,615
Foreign currency adjustment 0
Purchase price adjustment (1) 0
Goodwill 936,615
Specialty Foods [Member]  
Goodwill [Roll Forward]  
Goodwill 173,961
Foreign currency adjustment 0
Purchase price adjustment (1) 0
Goodwill $ 173,961