v3.26.1
Fair Value Measurements - Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Mar. 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments $ 116 $ 116 [1]
Corporate bonds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 58 52
U.S. Treasury securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 32 33
U.S. agency securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 2 2
Foreign government securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 3 5
Asset-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 21 24
(Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Deferred compensation plan assets 50 46
Total assets at fair value 465 614
Deferred compensation plan liabilities 50 46
Total liabilities at fair value 50 46
(Level 1) | Bank and time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Fair value, Cash equivalents 32 33
(Level 1) | Money market funds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Fair value, Cash equivalents 351 502
(Level 1) | Corporate bonds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 0 0
(Level 1) | U.S. Treasury securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 32 33
(Level 1) | U.S. agency securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 0  
(Level 1) | U.S. agency securities | Short-term investments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments   0
(Level 1) | Foreign government securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 0 0
(Level 1) | Asset-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Asset-backed securities 0 0
(Level 1) | Foreign currency derivatives    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Foreign currency derivatives 0 0
Foreign currency derivatives 0 0
(Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Deferred compensation plan assets 0 0
Total assets at fair value 136 118
Deferred compensation plan liabilities 0 0
Total liabilities at fair value 25 25
(Level 2) | Bank and time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Fair value, Cash equivalents 0 0
(Level 2) | Money market funds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Fair value, Cash equivalents 0 0
(Level 2) | Corporate bonds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 60 52
(Level 2) | U.S. Treasury securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 0 0
(Level 2) | U.S. agency securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 2  
(Level 2) | U.S. agency securities | Short-term investments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments   2
(Level 2) | Foreign government securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 3 5
(Level 2) | Asset-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Asset-backed securities 21 24
(Level 2) | Foreign currency derivatives    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Foreign currency derivatives 50 35
Foreign currency derivatives 25 25
(Level 3)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Deferred compensation plan assets 0 0
Total assets at fair value 0 0
Deferred compensation plan liabilities 0 0
Total liabilities at fair value 0 0
(Level 3) | Bank and time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Fair value, Cash equivalents 0 0
(Level 3) | Money market funds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Fair value, Cash equivalents 0 0
(Level 3) | Corporate bonds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 0 0
(Level 3) | U.S. Treasury securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 0 0
(Level 3) | U.S. agency securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 0  
(Level 3) | U.S. agency securities | Short-term investments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments   0
(Level 3) | Foreign government securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 0 0
(Level 3) | Asset-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Asset-backed securities 0 0
(Level 3) | Foreign currency derivatives    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Foreign currency derivatives 0 0
Foreign currency derivatives 0 0
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Deferred compensation plan assets 50 46
Total assets at fair value 601 732
Deferred compensation plan liabilities 50 46
Total liabilities at fair value 75 71
Fair Value | Bank and time deposits    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Fair value, Cash equivalents 32 33
Fair Value | Money market funds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Fair value, Cash equivalents 351 502
Fair Value | Corporate bonds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 60 52
Fair Value | U.S. Treasury securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 32 33
Fair Value | U.S. agency securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 2  
Fair Value | U.S. agency securities | Short-term investments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments   2
Fair Value | Foreign government securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term investments 3 5
Fair Value | Asset-backed securities    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Asset-backed securities 21 24
Fair Value | Foreign currency derivatives    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Foreign currency derivatives 50 35
Foreign currency derivatives $ 25 $ 25
[1] Derived from audited Consolidated Financial Statements.