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Financing Arrangements - Current Debt Obligations (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2020 | Apr. 24, 2020 | Apr. 26, 2019
Debt [Line Items] |  |  |
Current maturities of long-term debt |  | $ 2,776 |
Finance lease obligations |  | 5 |
Finance lease obligations |  |  | $ 6
Current debt obligations |  | $ 2,776 | 838
Senior Notes | 0.000 percent two-year 2019 senior notes |  |  |
Debt [Line Items] |  |  |
Stated interest rate |  | 0.00% |
Debt term |  | 2 years |
Current maturities of long-term debt |  | $ 1,631 | 0
Senior Notes | Floating rate two-year 2019 senior notes |  |  |
Debt [Line Items] |  |  |
Debt term |  | 2 years |
Current maturities of long-term debt |  | $ 815 | 0
Senior Notes | Floating rate five-year 2015 senior notes |  |  |
Debt [Line Items] |  |  |
Debt term | 5 years | 5 years |
Current maturities of long-term debt |  | $ 0 | 500
Bank borrowings |  |  |
Debt [Line Items] |  |  |
Bank borrowings |  | $ 325 | $ 332

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