XML 49 R29.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Employee Benefits (Tables)
3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Schedule of Net Periodic Benefit Cost
The components of net periodic benefit cost for our retirement plans and postretirement plans for the three months ended March 31 are as follows: 

(in millions)20242023
Interest cost$17 $18 
Expected return on assets(24)(25)
Amortization of prior service credit / actuarial loss
Net periodic benefit cost$(6)$(6)