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v3.26.1

Investments and Fair Value Measurements - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($) $ in Millions | Mar. 31, 2026 | Mar. 31, 2025
--- | --- | ---
Senior Notes | 3.875% Senior Notes due 2028 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument (as a percent) | 3.875% |
Senior Notes | Senior Notes due 2029 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument (as a percent) | 4.00% |
Senior Notes | Senior Notes due 2033 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument (as a percent) | 5.95% |
Senior Notes | Senior Notes due 2035 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument (as a percent) | 5.95% |
Carrying Amount |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | $ 3,964 | $ 4,026
Carrying Amount | Line of Credit | Credit Agreement | Term Loan A-1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 714 | 1,526
Carrying Amount | Line of Credit | Credit Agreement | Term Loan A-2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 750 | 0
Carrying Amount | Senior Notes | 3.875% Senior Notes due 2028 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 700 | 700
Carrying Amount | Senior Notes | Senior Notes due 2029 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 500 | 500
Carrying Amount | Senior Notes | Senior Notes due 2033 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 650 | 650
Carrying Amount | Senior Notes | Senior Notes due 2035 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 650 | 650
Estimated Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 3,937 | 3,954
Estimated Fair Value | Line of Credit | Credit Agreement | Term Loan A-1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 712 | 1,521
Estimated Fair Value | Line of Credit | Credit Agreement | Term Loan A-2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 743 | 0
Estimated Fair Value | Senior Notes | 3.875% Senior Notes due 2028 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 680 | 666
Estimated Fair Value | Senior Notes | Senior Notes due 2029 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 484 | 471
Estimated Fair Value | Senior Notes | Senior Notes due 2033 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | 663 | 651
Estimated Fair Value | Senior Notes | Senior Notes due 2035 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt | $ 655 | $ 645

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