Other Information - Rule 10b5-1 Disclosure	6 Months Ended
Jun. 30, 2023
Notes to Financial Statements
Issuer Rule 10b5-1, Material Terms [Text Block]	Item 5. Other Information On May 22, 2023, Jennifer L. Hamann, Executive Vice President and Chief Financial Officer, adopted a trading plan intended to satisfy Rule 10b5-1(c) to sell up to 2,000 shares of Union Pacific Corporation common stock between August 23, 2023, and January 31, 2024, subject to certain conditions. On May 22, 2023, Kenny G. Rocker, Executive Vice President – Marketing and Sales for Union Pacific Railroad Company, adopted a trading plan intended to satisfy Rule 10b5-1(c) to sell up to 9,919 shares of Union Pacific Corporation common stock, of which 4,180 are to be acquired upon the exercise of vested stock options, between August 23, 2023, and January 31, 2024, subject to certain conditions.

Other Information - Rule 10b5-1 Disclosure

6 Months Ended

Jun. 30, 2023

Issuer Rule 10b5-1, Material Terms [Text Block]

Item 5. Other Information

On May 22, 2023, Jennifer L. Hamann, Executive Vice President and Chief Financial Officer, adopted a trading plan intended to satisfy Rule 10b5-1(c) to sell up to 2,000 shares of Union Pacific Corporation common stock between August 23, 2023, and January 31, 2024, subject to certain conditions.

On May 22, 2023, Kenny G. Rocker, Executive Vice President – Marketing and Sales for Union Pacific Railroad Company, adopted a trading plan intended to satisfy Rule 10b5-1(c) to sell up to 9,919 shares of Union Pacific Corporation common stock, of which 4,180 are to be acquired upon the exercise of vested stock options, between August 23, 2023, and January 31, 2024, subject to certain conditions.