Supplementary Information (Tables)

12 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Cash Paid For Interest And Income Taxes [Table Text Block]

Cash paid for interest and income taxes was as follows:

(Stated in millions)
	2015		2014		2013
Interest.................................................	$	346	$	389	$	369
Income tax...............................................	$	1,567	$	2,048	$	1,729

Interest and Other Income [Table Text Block]

Interest and other income includes the following:

(Stated in millions)
	2015		2014		2013
Interest income............................................	$	52	$	51	$	33
Earnings of equity method investments.............................		184		240		132
	$	236	$	291	$	165

Change in Allowance for Doubtful Accounts

The change in Allowance for doubtful accounts is as follows:

(Stated in millions)
	2015			2014			2013
Balance at beginning of year....................................	$	275		$	384		$	202
Provision................................................		75			39			205
Amounts written off.........................................		(17	)		(148	)		(23	)
Balance at end of year........................................	$	333		$	275		$	384

Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities are summarized as follows:

(Stated in millions)
	2015		2014
Payroll, vacation and employee benefits..................................	$	1,424	$	1,899
Trade.........................................................		3,243		4,344
Other.........................................................		3,060		3,003
	$	7,727	$	9,246