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Share-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended			36 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Apr. 16, 2020	Feb. 28, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 25	$ 19	$ 99
Tax benefit relating to share-based compensation expense	$ 26	$ 29	$ 14
Unrecognized share-based compensation costs weighted-average period	1 year 6 months
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	3.0	3.5	2.1
Fair value of stock awarded (in dollars per share)	$ 11.68	$ 9.42	$ 11.87
CNH EIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)								50.0
CNH EIP \| Executive Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)							7.0
Long Term Incentive Plan Years 2023, 2024, 2025 \| Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period						3 years
Long Term Incentive Plan Years 2023, 2024, 2025 \| Restricted Stock Units \| Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years	3 years
2023-2025 Long Term Incentive Plan \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	3.0	9.7	2.8
Vested (in dollars per share)	$ 11.30	$ 8.27	$ 12.29