Unsecured Borrowings - Unsecured Short-Term Borrowings (Detail) - USD ($) $ in Millions |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Debt Disclosure [Abstract] | ||
| Current portion of unsecured long-term borrowings | $ 25,914 | $ 30,636 |
| Hybrid financial instruments | 18,823 | 15,814 |
| Commercial Paper | 6,085 | |
| Other unsecured short-term borrowings | 2,048 | 1,837 |
| Total unsecured short-term borrowings | $ 52,870 | $ 48,287 |
| Weighted average interest rate | 1.84% | 2.71% |
| X | ||||||||||
- Definition Short-term instruments that contain bifurcatable embedded derivatives and do not require settlement by physical delivery of non-financial assets (e.g., physical commodities). No definition available.
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of unsecured short-term borrowings (with maturities due within one year) including the current portion of unsecured long-term borrowings. No definition available.
|
| X | ||||||||||
- Definition Reflects the weighted average interest rate as of the balance sheet date for unsecured short-term borrowings outstanding, after giving effect to hedging activities. No definition available.
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of the portion of long-term, uncollateralized debt obligations due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|