XML 122 R99.htm IDEA: XBRL DOCUMENT v3.24.0.1
Retirement Plans (Schedule of Net Periodic Benefit Cost And Other Comprehensive Loss (Earnings) For Pension And Other Postretirement Benefit Plans) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Net periodic benefit cost:      
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Gain (Loss) on Hedging Activity Gain (Loss) on Hedging Activity Gain (Loss) on Hedging Activity
Pension Benefits [Member]      
Net periodic benefit cost:      
Interest cost $ 34 $ 19 $ 18
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (27) (31) (34)
Recognition of net actuarial loss (gain) 6 6 4
Total net periodic benefit cost 13 (6) (12)
Other comprehensive loss (earnings):      
Actuarial loss (gain) arising in current year 16 (11) 28
Recognition of net actuarial (loss) gain, including settlement expense, in net periodic benefit cost (6) (6) (23)
Total other comprehensive loss (earnings) 10 (17) 5
Total 23 (23) (7)
Postretirement Benefits [Member]      
Net periodic benefit cost:      
Recognition of net actuarial loss (gain) (1) (1) (1)
Total net periodic benefit cost (1) (1) (1)
Other comprehensive loss (earnings):      
Actuarial loss (gain) arising in current year 0 (4) (1)
Prior service cost arising in current year     1
Recognition of net actuarial (loss) gain, including settlement expense, in net periodic benefit cost 1 1 1
Total other comprehensive loss (earnings) (1) (3) $ 1
Total $ 0 $ (4)