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(Fair Value Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Mar. 31, 2022
--- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | $ 334 | $ 330 | [1]
Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Total assets at fair value | 190 | 437 |
Total liabilities at fair value | 24 | 22 |
Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Total assets at fair value | 394 | 303 |
Total liabilities at fair value | 13 | 14 |
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Total assets at fair value | 0 | 0 |
Total liabilities at fair value | 0 | 0 |
Short-term investments | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Corporate bonds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 |  |
Short-term investments | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | U.S. Treasury securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 103 |  |
Short-term investments | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | U.S. agency securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 |  |
Short-term investments | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Commercial paper |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 |  |
Short-term investments | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Debt Security, Government, Non-US [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 | 0 |
Short-term investments | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Asset-backed Securities [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Asset-backed securities | 0 | 0 |
Short-term investments | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Certificates of Deposit [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 | 0 |
Short-term investments | Significant Other Observable Inputs (Level 2) | Corporate bonds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 132 |  |
Short-term investments | Significant Other Observable Inputs (Level 2) | U.S. Treasury securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 |  |
Short-term investments | Significant Other Observable Inputs (Level 2) | U.S. agency securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 3 |  |
Short-term investments | Significant Other Observable Inputs (Level 2) | Commercial paper |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 32 |  |
Short-term investments | Significant Other Observable Inputs (Level 2) | Debt Security, Government, Non-US [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 18 | 17 |
Short-term investments | Significant Other Observable Inputs (Level 2) | Asset-backed Securities [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Asset-backed securities | 37 | 38 |
Short-term investments | Significant Other Observable Inputs (Level 2) | Certificates of Deposit [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 16 | 18 |
Short-term investments | Fair Value, Inputs, Level 3 [Member] | Corporate bonds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 |  |
Short-term investments | Fair Value, Inputs, Level 3 [Member] | U.S. Treasury securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 |  |
Short-term investments | Fair Value, Inputs, Level 3 [Member] | U.S. agency securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 |  |
Short-term investments | Fair Value, Inputs, Level 3 [Member] | Commercial paper |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 |  |
Short-term investments | Fair Value, Inputs, Level 3 [Member] | Debt Security, Government, Non-US [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 | 0 |
Short-term investments | Fair Value, Inputs, Level 3 [Member] | Asset-backed Securities [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Asset-backed securities | 0 | 0 |
Short-term investments | Fair Value, Inputs, Level 3 [Member] | Certificates of Deposit [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 0 | 0 |
Short-Term Investments And Cash Equivalents | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Corporate bonds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 0 |
Short-Term Investments And Cash Equivalents | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | U.S. Treasury securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 104 |
Short-Term Investments And Cash Equivalents | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Commercial paper |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 0 |
Short-Term Investments And Cash Equivalents | Significant Other Observable Inputs (Level 2) | Corporate bonds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 116 |
Short-Term Investments And Cash Equivalents | Significant Other Observable Inputs (Level 2) | U.S. Treasury securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 0 |
Short-Term Investments And Cash Equivalents | Significant Other Observable Inputs (Level 2) | Commercial paper |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 51 |
Short-Term Investments And Cash Equivalents | Fair Value, Inputs, Level 3 [Member] | Corporate bonds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 0 |
Short-Term Investments And Cash Equivalents | Fair Value, Inputs, Level 3 [Member] | U.S. Treasury securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 0 |
Short-Term Investments And Cash Equivalents | Fair Value, Inputs, Level 3 [Member] | Commercial paper |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 0 |
Cash Equivalents | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Bank Time Deposits [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Cash equivalents | 53 | 55 |
Cash Equivalents | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Money market funds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Cash equivalents | 11 | 257 |
Cash Equivalents | Significant Other Observable Inputs (Level 2) | Bank Time Deposits [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Cash equivalents | 0 | 0 |
Cash Equivalents | Significant Other Observable Inputs (Level 2) | Money market funds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Cash equivalents | 0 | 0 |
Cash Equivalents | Fair Value, Inputs, Level 3 [Member] | Bank Time Deposits [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Cash equivalents | 0 | 0 |
Cash Equivalents | Fair Value, Inputs, Level 3 [Member] | Money market funds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Cash equivalents | 0 | 0 |
Other Current Assets and Other Assets [Domain] | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Foreign currency derivatives |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Foreign currency derivatives, assets | 0 | 0 |
Other Current Assets and Other Assets [Domain] | Significant Other Observable Inputs (Level 2) | Foreign currency derivatives |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Foreign currency derivatives, assets | 156 | 63 |
Other Current Assets and Other Assets [Domain] | Fair Value, Inputs, Level 3 [Member] | Foreign currency derivatives |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Foreign currency derivatives, assets | 0 | 0 |
Other assets | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Deferred compensation plan assets |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Deferred compensation plan assets | 23 | 21 |
Other assets | Significant Other Observable Inputs (Level 2) | Deferred compensation plan assets |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Deferred compensation plan assets | 0 | 0 |
Other assets | Fair Value, Inputs, Level 3 [Member] | Deferred compensation plan assets |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Deferred compensation plan assets | 0 | 0 |
Accrued and Other Current Liabilities and Other Liabilities | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Foreign currency derivatives |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Foreign currency derivatives, liabilities | 0 | 0 |
Accrued and Other Current Liabilities and Other Liabilities | Significant Other Observable Inputs (Level 2) | Foreign currency derivatives |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Foreign currency derivatives, liabilities | 13 | 14 |
Accrued and Other Current Liabilities and Other Liabilities | Fair Value, Inputs, Level 3 [Member] | Foreign currency derivatives |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Foreign currency derivatives, liabilities | 0 | 0 |
Other liabilities | Quoted Prices In Active Markets For Identical Financial Instruments (Level 1) | Deferred Compensation Plan Liabilities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Deferred compensation plan assets | 24 | 22 |
Other liabilities | Significant Other Observable Inputs (Level 2) | Deferred Compensation Plan Liabilities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Deferred compensation plan assets | 0 | 0 |
Other liabilities | Fair Value, Inputs, Level 3 [Member] | Deferred Compensation Plan Liabilities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Deferred compensation plan assets | 0 | 0 |
Fair Value |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Total assets at fair value | 584 | 740 |
Total liabilities at fair value | 37 | 36 |
Fair Value | Short-term investments | Corporate bonds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 132 |  |
Fair Value | Short-term investments | U.S. Treasury securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 103 |  |
Fair Value | Short-term investments | U.S. agency securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 3 |  |
Fair Value | Short-term investments | Commercial paper |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 32 |  |
Fair Value | Short-term investments | Debt Security, Government, Non-US [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 18 | 17 |
Fair Value | Short-term investments | Asset-backed Securities [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Asset-backed securities | 37 | 38 |
Fair Value | Short-term investments | Certificates of Deposit [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments | 16 | 18 |
Fair Value | Short-Term Investments And Cash Equivalents | Corporate bonds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 116 |
Fair Value | Short-Term Investments And Cash Equivalents | U.S. Treasury securities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 104 |
Fair Value | Short-Term Investments And Cash Equivalents | Commercial paper |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Short-term investments |  | 51 |
Fair Value | Cash Equivalents | Bank Time Deposits [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Cash equivalents | 53 | 55 |
Fair Value | Cash Equivalents | Money market funds |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Cash equivalents | 11 | 257 |
Fair Value | Other Current Assets and Other Assets [Domain] | Foreign currency derivatives |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Foreign currency derivatives, assets | 156 | 63 |
Fair Value | Other assets | Deferred compensation plan assets |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Deferred compensation plan assets | 23 | 21 |
Fair Value | Accrued and Other Current Liabilities and Other Liabilities | Foreign currency derivatives |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Foreign currency derivatives, liabilities | 13 | 14 |
Fair Value | Other liabilities | Deferred Compensation Plan Liabilities |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Fair value, Deferred compensation plan assets | $ 24 | $ 22 |
[1] | Derived from audited Consolidated Financial Statements.

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