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Financing Arrangements - Additional Information (Detail) |  | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 22, 2021 USD ($) Extension | Jul. 28, 2017 USD ($) | Jan. 28, 2022 USD ($) | Jan. 29, 2021 USD ($) | Apr. 30, 2021 USD ($) | Jun. 30, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |
Issuance of debt, net of issuance costs |  |  | $ 0 | $ 2,057,000,000 |  |
Commercial paper notes |  |  | 0 |  | $ 0 |
Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Credit facility, amount | $ 1,000,000,000.0 |  |  |  |  |
Credit facility, maturity | Jan. 22, 2026 |  |  |  |  |
Credit facility, number of extensions | Extension | 2 |  |  |  |  |
Credit facility, extensions period | 1 year |  |  |  |  |
Credit facility, amounts drawn | $ 0 |  |  |  |  |
Revolving Credit Facility | Letter Of Credit Sub Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Credit facility, amount | $ 50,000,000 |  |  |  |  |
Commercial Paper |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Issuance of debt, net of issuance costs |  |  | 75,000,000 |  |  |
Proceeds from repayments of debt |  |  | 176,000,000 |  |  |
Commercial Paper | Maximum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes issued, principal amount |  | $ 1,000,000,000.0 |  |  |  |
Debt instrument maturity period |  | 397 days |  |  |  |
Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes issued, principal amount |  |  | 2,650,000,000 |  | 2,650,000,000 |
Senior Notes | Due June 2027 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes issued, principal amount |  |  | 550,000,000 |  | 550,000,000 | $ 550,000,000
Notes issued, interest rate |  |  |  |  |  | 2.375%
Senior Notes | Due June 2025 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes issued, principal amount |  |  | 750,000,000 |  | 750,000,000 | $ 750,000,000
Notes issued, interest rate |  |  |  |  |  | 1.875%
Senior Notes | Due June 2030 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes issued, principal amount |  |  | 700,000,000 |  | 700,000,000 | $ 700,000,000
Notes issued, interest rate |  |  |  |  |  | 2.70%
Senior Notes | Due September 2024 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes issued, principal amount |  |  | $ 400,000,000 |  | 400,000,000 |
Notes issued, interest rate |  |  | 3.30% |  |  |
Senior Notes | Due December 2022 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes issued, principal amount |  |  | $ 250,000,000 |  | $ 250,000,000 |
Notes issued, interest rate |  |  | 3.25% |  |  |

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