The amount of outstanding funds that the entity is obligated to repay.

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The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The amount of current investments.

+ References

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The amount of net debt of the entity.

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Loans, borrowings, cash and cash equivalents and financial investments - Net debt (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans and borrowings
Total of loans and borrowings	$ 13,056	$ 15,466
Cash and cash equivalents	7,350	5,784	$ 4,328	$ 4,262
Short-term investments	826	32
Net debt	4,880	9,650
Debt contracts in the international markets
Loans and borrowings
Total of loans and borrowings	10,494	11,783
Debt contract in Brazil
Loans and borrowings
Total of loans and borrowings	$ 2,562	$ 3,683