XML 87 R76.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Pension and Other Postretirement Healthcare Benefits - Schedule of Components of Net Periodic Pension and Postretirement Healthcare Cost (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Pensions    
Net periodic cost:    
Service cost $ 1 $ 1
Interest cost 4 4
Expected return on plan assets (5) (5)
Total net periodic cost 0 0
Other Postretirement Benefit Plans    
Net periodic cost:    
Interest cost 1 1
Total net periodic cost $ 1 $ 1