Debt - Schedule of Long-Term Debt (Details) € in Millions, ¥ in Millions, $ in Millions	Mar. 31, 2026 USD ($)	Mar. 31, 2026 EUR (€)	Mar. 31, 2026 JPY (¥)	Mar. 03, 2026	Dec. 31, 2025 USD ($)	Dec. 31, 2025 JPY (¥)
Debt Instrument [Line Items]
Short-term borrowings	$ 450				$ 0
Other, net	(25)				(16)
Total debt	4,686				3,050
Less: amounts due within one year	636				191
Total long-term debt	$ 4,050				2,859
Currency Swap
Debt Instrument [Line Items]
Fixed interest rate (as a percent)	3.72%	3.72%	3.72%
Derivative liability | €		€ 458
Term Loan | JPY Term Loan Facility
Debt Instrument [Line Items]
Amount outstanding	$ 186		¥ 29,702		$ 191	¥ 29,702
Fixed interest rate (as a percent)	1.794%	1.794%	1.794%		1.794%	1.794%
Bonds | 6.750% Bonds, due 2028
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	6.75%	6.75%	6.75%
Amount outstanding	$ 300				$ 300
Notes | 3.750% Notes, due 2028
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	3.75%	3.75%	3.75%	3.75%
Amount outstanding	$ 400				0
Notes | 3.000% Notes, due 2029
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	3.00%	3.00%	3.00%
Amount outstanding	$ 700				700
Notes | 3.900% Notes, due 2029
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	3.90%	3.90%	3.90%	3.90%
Amount outstanding	$ 300				0
Notes | 4.850% Notes, due 2031
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	4.85%	4.85%	4.85%
Amount outstanding	$ 500				500
Notes | 4.550% Notes, due 2032
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	4.55%	4.55%	4.55%
Amount outstanding	$ 500				500
Notes | 4.750% Notes, due 2036
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	4.75%	4.75%	4.75%	4.75%
Amount outstanding	$ 500				0
Notes | 5.950% Notes, due 2037
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	5.95%	5.95%	5.95%
Amount outstanding	$ 625				625
Loans | 4.750% Iowa Finance Authority Loan, due 2042
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)	4.75%	4.75%	4.75%
Amount outstanding	$ 250				$ 250