HELD FOR SALE - Schedule Of Assets And Liabilities Classified As Held-For-Sale (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 5,139	$ 4,299	$ 2,774
Accounts receivables and other	11,973	9,133
Investment properties	56,870	54,172	47,164
Property, plant and equipment	53,005	45,346
Other long-term assets	2,232	1,471
Assets classified as held for sale	1,605	432
Liabilities
Accounts payable and other	17,965	11,915
Property-specific borrowings	63,721	52,442
Liabilities associated with assets classified as held for sale	1,424	127
Assets and liabilities classified as held for sale
Assets
Cash and cash equivalents	20	8
Accounts receivables and other	44	134
Investment properties	1,007	165
Property, plant and equipment	490	58
Other long-term assets	44	67
Assets classified as held for sale	1,605	432
Liabilities
Accounts payable and other	212	67
Property-specific borrowings	1,212	60
Liabilities associated with assets classified as held for sale	1,424	127
Real Estate
Assets
Property, plant and equipment	5,779	5,652	5,316
Real Estate \| Assets and liabilities classified as held for sale
Assets
Cash and cash equivalents	20
Accounts receivables and other	44
Investment properties	1,007
Property, plant and equipment	475
Other long-term assets	44
Assets classified as held for sale	1,590
Liabilities
Accounts payable and other	212
Property-specific borrowings	1,212
Liabilities associated with assets classified as held for sale	1,424
Private Equity and Other
Assets
Property, plant and equipment	2,733	$ 3,596	$ 3,881
Private Equity and Other \| Assets and liabilities classified as held for sale
Assets
Cash and cash equivalents	0
Accounts receivables and other	0
Investment properties	0
Property, plant and equipment	15
Other long-term assets	0
Assets classified as held for sale	15
Liabilities
Accounts payable and other	0
Property-specific borrowings	0
Liabilities associated with assets classified as held for sale	$ 0

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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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The amount of current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Current assets; Disposal groups classified as held for sale [member]; Non-current assets or disposal groups classified as held for sale; Non-current assets or disposal groups classified as held for distribution to owners]

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Expiry date 2019-01-01: The amount of property (land or a building - or part of a building - or both) held (by the owner or by the lessee under a finance lease) to earn rentals or for capital appreciation or both, rather than for: (a) use in the production or supply of goods or services or for administrative purposes; or (b) sale in the ordinary course of business. Effective 2019-01-01: The amount of property (land or a building - or part of a building - or both) held (by the owner or by the lessee as a right-of-use asset) to earn rentals or for capital appreciation or both, rather than for: (a) use in the production or supply of goods or services or for administrative purposes; or (b) sale in the ordinary course of business.

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The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]]

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The amount of non-current financial assets that the entity does not separately disclose in the same statement or note. [Refer: Other financial assets]

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The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period.

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The amount of trade payables and other payables. [Refer: Trade payables; Other payables]

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The amount of trade receivables and other receivables. [Refer: Trade receivables; Other receivables]

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