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Borrowings - Additional Information (Details) | May 13, 2021 USD ($) patent | May 15, 2020 | May 01, 2021 USD ($) | Jul. 25, 2020 USD ($)
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Derivative, notional amount |  |  | $ 6,793,000,000 | $ 7,395,000,000
Unsecured facility | Revolving credit facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility, term |  | 364 days |  |
Line of credit facility, amount outstanding |  |  | 0 |
Subsequent event | Unsecured facility | Revolving credit facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility, term | 5 years |  |  |
Maximum borrowing capacity | $ 3,000,000,000.0 |  |  |
Additional credit facility upon agreement (up to) | $ 2,000,000,000.0 |  |  |
Number of extension options | patent | 2 |  |  |
Subsequent event | Unsecured facility | Revolving credit facility | Pound Sterling | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate | 0.00% |  |  |
Subsequent event | Unsecured facility | Revolving credit facility | Federal Funds rate | U.S. dollars |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate | 0.50% |  |  |
Subsequent event | Unsecured facility | Revolving credit facility | LIBOR | U.S. dollars |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate | 1.00% |  |  |
Interest rate swaps | Fair Value Hedge | Derivatives designated as hedging instruments |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Derivative, notional amount |  |  | 2,000,000,000.0 |
Commercial paper |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Commercial paper, maximum borrowing limit (up to) |  |  | 10,000,000,000.0 |
Commercial paper outstanding |  |  | $ 0 | $ 0

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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