v3.26.1
Master Trust - Schedule of Master Trust Net Assets (Details) - GMHP - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Other assets    
Cash $ 4 $ 4
Receivables for securities sold 1 0
Total Master Trust assets 55,720 51,643
Liabilities    
Payables for securities purchased (5) (4)
Net Master Trust assets 55,715 51,639
Master Trust    
EBP, Master Trust [Line Items]    
Investments, at fair value 21,737,110 17,558,746
Fully benefit-responsive synthetic guaranteed investment contracts 745,342 780,302
Other assets    
Cash 5,609 12,700
Receivables for securities sold 10,745 113,787
Accrued income 39,453 31,300
Total Other assets 55,807 157,787
Total Master Trust assets 22,538,259 18,496,835
Liabilities    
Payables for securities purchased (26,413) (151,488)
Net Master Trust assets 22,511,846 18,345,347
Master Trust | Caterpillar Inc. common stock    
EBP, Master Trust [Line Items]    
Investments, at fair value 5,495,510 3,784,230
Master Trust | Common stocks    
EBP, Master Trust [Line Items]    
Investments, at fair value 3,921,926 3,360,443
Master Trust | Preferred stocks    
EBP, Master Trust [Line Items]    
Investments, at fair value 23,527 16,468
Master Trust | Preferred corporate bonds and notes    
EBP, Master Trust [Line Items]    
Investments, at fair value 5,481 7,570
Master Trust | Other corporate bonds and notes    
EBP, Master Trust [Line Items]    
Investments, at fair value 1,116,507 899,155
Master Trust | U.S. government securities    
EBP, Master Trust [Line Items]    
Investments, at fair value 917,546 847,015
Master Trust | Common collective trusts    
EBP, Master Trust [Line Items]    
Investments, at fair value 10,071,355 8,473,155
Master Trust | Registered investment companies    
EBP, Master Trust [Line Items]    
Investments, at fair value 24,181 8,351
Master Trust | Other investments, net    
EBP, Master Trust [Line Items]    
Investments, at fair value 161,077 162,359
Plan’s Interest in Master Trust    
EBP, Master Trust [Line Items]    
Investments, at fair value 52,402 48,197
Fully benefit-responsive synthetic guaranteed investment contracts 1,550 1,942
Other assets    
Cash 18 43
Receivables for securities sold 38 770
Accrued income 177 162
Total Other assets 233 975
Total Master Trust assets 54,185 51,114
Liabilities    
Payables for securities purchased (118) (899)
Net Master Trust assets 54,067 50,215
Plan’s Interest in Master Trust | Caterpillar Inc. common stock    
EBP, Master Trust [Line Items]    
Investments, at fair value 573 405
Plan’s Interest in Master Trust | Common stocks    
EBP, Master Trust [Line Items]    
Investments, at fair value 9,689 8,950
Plan’s Interest in Master Trust | Preferred stocks    
EBP, Master Trust [Line Items]    
Investments, at fair value 84 72
Plan’s Interest in Master Trust | Preferred corporate bonds and notes    
EBP, Master Trust [Line Items]    
Investments, at fair value 31 51
Plan’s Interest in Master Trust | Other corporate bonds and notes    
EBP, Master Trust [Line Items]    
Investments, at fair value 6,583 6,221
Plan’s Interest in Master Trust | U.S. government securities    
EBP, Master Trust [Line Items]    
Investments, at fair value 5,230 5,635
Plan’s Interest in Master Trust | Common collective trusts    
EBP, Master Trust [Line Items]    
Investments, at fair value 29,601 26,235
Plan’s Interest in Master Trust | Registered investment companies    
EBP, Master Trust [Line Items]    
Investments, at fair value 113 31
Plan’s Interest in Master Trust | Other investments, net    
EBP, Master Trust [Line Items]    
Investments, at fair value $ 498 $ 597