v3.26.1
Goodwill and Other Intangible Assets (Tables)
6 Months Ended
Jun. 28, 2026
Intangible Asset, Goodwill and Other [Abstract]  
Schedule of the Changes in Goodwill
A summary of the changes in goodwill for the six-month period ended June 28, 2026 is as follows: 

Consumer
Packaging
Industrial Paper PackagingTotal
Goodwill at December 31, 2025$1,947,991 $563,620 $2,511,611 
Divestitures— (538)(538)
Foreign currency translation(43,769)(3,566)(47,335)
Goodwill at June 28, 2026$1,904,222 $559,516 $2,463,738 
Schedule of Other Intangible Assets
A summary of other intangible assets as of June 28, 2026 and December 31, 2025 is as follows:    
June 28,
2026
December 31,
2025
Other Intangible Assets, gross:
Patents$29,235 $29,403 
Customer lists2,833,022 2,895,345 
Trade names27,929 28,417 
Proprietary technology228,380 234,336 
Other2,071 2,054 
Total Other Intangible Assets, gross$3,120,637 $3,189,555 
Accumulated Amortization:
Patents$(19,971)$(18,706)
Customer lists(499,254)(431,704)
Trade names(13,188)(12,488)
Proprietary technology(53,526)(41,990)
Other(1,306)(1,193)
Total Accumulated Amortization(587,245)(506,081)
Other Intangible Assets, net$2,533,392 $2,683,474