Debt - Long-term Debt (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)	Apr. 01, 2025	Apr. 01, 2024	Mar. 31, 2024	Dec. 31, 2023 USD ($)
Long-term debt
Principal amount	$ 2,923				$ 3,130
Unamortized discount and debt issuance costs	64				66
Total long-term debt	2,859				3,064
Current portion of long-term debt	22				20
Long-term debt, net	2,837				3,044
Long-term debt maturities
Scheduled principal payments 2025	22
Scheduled principal payments 2026	228
Scheduled principal payments 2027	158
Scheduled principal payments 2028	286
Scheduled principal payments 2029	$ 5
Consolidated leverage ratio			4.00	4.25
Consolidated interest coverage ratio	3.00
Subsequent event
Long-term debt maturities
Consolidated leverage ratio		3.75
Subordination Agreement
Long-term debt maturities
Consolidated funded indebtedness	$ 0
Refinancing indebtedness	$ 0
6.7% Senior Notes
Long-term debt
Interest rate on debt	6.70%
Principal amount	$ 544				544
Long term debt	534				533
Unamortized discount and debt issuance costs	$ 10				11
Long-term debt maturities
Redemption price, percentage	100.00%
6.25% Senior Notes
Long-term debt
Interest rate on debt	6.25%
Principal amount	$ 500				500
Long term debt	483				483
Unamortized discount and debt issuance costs	$ 17				17
5.50% Senior Notes
Long-term debt
Interest rate on debt	5.50%
Principal amount	$ 500				500
Long term debt	483				483
Unamortized discount and debt issuance costs	$ 17				17
5.50% Senior Notes
Long-term debt
Interest rate on debt	5.50%
Principal amount	$ 500				500
Long term debt	484				484
Unamortized discount and debt issuance costs	$ 16				16
Callable Notes
Long-term debt maturities
Redemption price, percentage	100.00%
Receivables securitization agreement
Long-term debt
Principal amount	$ 2				150
Long term debt	2				150
Unamortized discount and debt issuance costs	0				0
Export credit financing agreement
Long-term debt
Principal amount	150				150
Long term debt	150				149
Unamortized discount and debt issuance costs	0				1
Term Loan Agreements
Long-term debt
Principal amount	723				783
Long term debt	719				779
Unamortized discount and debt issuance costs	4				4
Finance lease obligations
Long-term debt
Principal amount	4				3
Unamortized discount and debt issuance costs	0				0
Finance lease obligations	4				$ 3
Subordination Agreement | Maximum
Long-term debt maturities
Consolidated funded indebtedness	105
Refinancing indebtedness	$ 250
Treasury Rate | 6.7% Senior Notes
Long-term debt
Contractual spread	0.30%