v3.26.3
Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period $ 5,732 $ 5,042 $ 5,353 $ 4,554
Other comprehensive income:        
Total Other comprehensive income (loss), net of tax 2 (5) (22) 124
Balance at end of period $ 5,762 5,143 $ 5,762 5,143
6.750% Bonds, due 2028 | Bonds        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Long-term debt, interest rate (as a percent) 6.75%   6.75%  
4.850% Notes, due 2031 | Notes        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Long-term debt, interest rate (as a percent) 4.85%   4.85%  
Accumulated other comprehensive loss        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period $ (1,697) (1,749) $ (1,673) (1,878)
Other comprehensive income:        
Total Other comprehensive income (loss), net of tax 2 (5) (22) 124
Balance at end of period (1,695) (1,754) (1,695) (1,754)
Pension and other postretirement benefits        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period (584) (666) (592) (672)
Other comprehensive income:        
Other comprehensive income (loss) before reclassifications, before tax (8) (1) (8) (1)
Tax benefit (expense) 6 0 6 1
Total Other comprehensive (loss) income before reclassifications, net of tax (2) (1) (2) 0
Reclassification from other comprehensive income (loss), before tax 6 4 16 10
Tax benefit (expense) (1) (1) (3) (2)
Total amount reclassified from Accumulated other comprehensive (loss) income, net of tax 5 3 13 8
Total Other comprehensive income (loss), net of tax 3 2 11 8
Balance at end of period (581) (664) (581) (664)
Foreign currency translation        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period (1,094) (1,045) (1,052) (1,207)
Other comprehensive income:        
Total Other comprehensive income (loss), net of tax 4 (13) (38) 149
Balance at end of period (1,090) (1,058) (1,090) (1,058)
Cash flow hedges        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period (19) (38) (29) 1
Other comprehensive income:        
Other comprehensive income (loss) before reclassifications, before tax (5) 8 9 (42)
Tax benefit (expense) 1 (2) (2) 9
Total Other comprehensive (loss) income before reclassifications, net of tax (4) 6 7 (33)
Reclassification from other comprehensive income (loss), before tax (1) 0 (2) 0
Total Other comprehensive income (loss), net of tax (5) 6 5 (33)
Balance at end of period $ (24) $ (32) $ (24) $ (32)