ACCOUNTS PAYABLE AND OTHER (Tables) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2019

Dec. 31, 2018

Subclassifications of assets, liabilities and equities [abstract]

Operating expense

$ 52,728

$ 45,519

Schedule of accounts payable and other liabilities

AS AT DEC. 31 (MILLIONS)	2019		2018
Accounts payable	$	9,583	$	6,873
Provisions	4,104		2,830
Lease liabilities	5,494		—
Other liabilities	23,896		14,286
Total	$	43,077	$	23,989

Disclosure of current and non-current accounts payable and other [Table Text Block]

The current and non-current balances of accounts payable, provisions and other liabilities are as follows:

AS AT DEC. 31 (MILLIONS)	2019		2018
Current	$	23,212	$	14,337
Non-current	19,865		9,652
Total	$	43,077	$	23,989

Schedule of post-employment benefit plans

AS AT DEC. 31 (MILLIONS)	2019			2018
Plan assets	$	3,029		$	1,981
Less accrued benefit obligation:
Defined benefit pension plan	(3,995		)	(2,548		)
Other post-employment benefits	(173		)	(148		)
Net liability	(1,139		)	(715		)
Less: net actuarial gains (losses) and other	13			(10		)
Accrued benefit liability	$	(1,126	)	$	(725	)