Share-Based Compensation	9 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]
7. SHARE-BASED COMPENSATION	7. SHARE-BASED COMPENSATION During the nine months ended December 31, 2025, we granted 1,787,668 Hindalco phantom RSUs and 1,685,232 Hindalco SARs. Total share-based compensation expense was $11 million and $21 million for the three and nine months ended December 31, 2025, respectively. Total share-based compensation benefit was $1 million and an expense of $25 million for the three and nine months ended December 31, 2024, respectively. As of December 31, 2025, the outstanding liability related to share-based compensation was $29 million. The cash payments made to settle all Hindalco SAR liabilities were $7 million and $11 million in the nine months ended December 31, 2025, and 2024, respectively. Total cash payments made to settle RSUs were $32 million and $15 million in the nine months ended December 31, 2025, and 2024, respectively. As of December 31, 2025, unrecognized compensation expense related to the non-vested Hindalco SARs (assuming all future performance criteria are met) and the RSUs was $9 million and $17 million, respectively. The unrecognized expense related to the non-vested Hindalco SARs and the RSUs is expected to be recognized over weighted average periods of 1.3 years and 1.5 years, respectively.

Share-Based Compensation

9 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement [Abstract]

During the nine months ended December 31, 2025, we granted 1,787,668 Hindalco phantom RSUs and 1,685,232 Hindalco SARs. Total share-based compensation expense was $11 million and $21 million for the three and nine months ended December 31, 2025, respectively. Total share-based compensation benefit was $1 million and an expense of $25 million for the three and nine months ended December 31, 2024, respectively. As of December 31, 2025, the outstanding liability related to share-based compensation was $29 million.

The cash payments made to settle all Hindalco SAR liabilities were $7 million and $11 million in the nine months ended December 31, 2025, and 2024, respectively. Total cash payments made to settle RSUs were $32 million and $15 million in the nine months ended December 31, 2025, and 2024, respectively. As of December 31, 2025, unrecognized compensation expense related to the non-vested Hindalco SARs (assuming all future performance criteria are met) and the RSUs was $9 million and $17 million, respectively. The unrecognized expense related to the non-vested Hindalco SARs and the RSUs is expected to be recognized over weighted average periods of 1.3 years and 1.5 years, respectively.