EMPLOYEE BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2016

EMPLOYEE BENEFIT PLANS

Changes in the defined benefit pension and postretirement benefit plans' benefit obligations, assets and funded status of plans recognized in the balance sheet

	Pension Benefits December 31,						Postretirement Benefits December 31,
(US$ in millions)	2016			2015			2016			2015
Change in benefit obligations:
Benefit obligation at the beginning of year	$	864		$	906		$	56		$	69
Service cost		32			35			—			—
Interest cost		35			33			7			5
Plan curtailments		(3	)		(6	)		—			—
Actuarial (gain) loss, net		31			(54	)		8			8
Employee contributions		6			6			1			1
Net transfers in (out)		8			—			—			—
Plan settlements		(5	)		(6	)		—			—
Benefits paid		(21	)		(30	)		(7	)		(8	)
Expenses paid		(2	)		(3	)		—			—
Impact of foreign exchange rates		(4	)		(17	)		9			(19	)
Benefit obligation at the end of year	$	941		$	864		$	74		$	56
Change in plan assets:
Fair value of plan assets at the beginning of year	$	689		$	650		$	—		$	—
Actual return on plan assets		53			(3	)		—			—
Employer contributions		20			90			6			7
Employee contributions		6			6			1			1
Plan settlements		(4	)		(6	)		—			—
Effect of plan combinations		1			—			—			—
Benefits paid		(21	)		(30	)		(7	)		(8	)
Expenses paid		(3	)		(3	)		—			—
Impact of foreign exchange rates		(1	)		(15	)		—			—
Fair value of plan assets at the end of year	$	740		$	689		$	—		$	—
Funded (unfunded) status and net amounts recognized:
Plan assets (less than) in excess of benefit obligation	$	(201	)	$	(175	)	$	(74	)	$	(56	)
Net (liability) asset recognized in the balance sheet	$	(201	)	$	(175	)	$	(74	)	$	(56	)
Amounts recognized in the balance sheet consist of:
Non-current assets	$	16		$	12		$	—		$	—
Current liabilities		(5	)		(5	)		(8	)		(6	)
Non-current liabilities		(212	)		(182	)		(66	)		(50	)
Net liability recognized	$	(201	)	$	(175	)	$	(74	)	$	(56	)

Schedule of effects of one-percentage point change in assumed healthcare cost trend rates

(US$ in millions)	One-percentage point increase		One-percentage point decrease
Effect on total service and interest cost	$	1	$	—
Effect on postretirement benefit obligation	$	5	$	(5	)

Components of net periodic benefit costs

	Pension Benefits December 31,									Postretirement Benefits December 31,
(US$ in millions)	2016			2015			2014			2016		2015		2014
Service cost	$	32		$	35		$	30		$	—	$	—	$	—
Interest cost		35			33			36			7		5		6
Expected return on plan assets		(44	)		(42	)		(39	)		—		—		—
Amortization of prior service cost		—			1			1			—		—		—
Amortization of net loss		10			12			4			—		—		(1	)
Curtailment loss		—			1			—			—		—		(2	)
Settlement loss recognized		—			1			—			—		—		—
Special termination benefit		1			—			—			—		—		—
Net periodic benefit costs	$	34		$	41		$	32		$	7	$	5	$	3

Schedule of weighted-average assumptions used in determining the benefit obligations

	Pension Benefits December 31,						Postretirement Benefits December 31,
	2016			2015			2016			2015
Discount rate		3.9	%		4.2	%		10.8	%		11.4	%
Increase in future compensation levels		3.2	%		3.3	%		N/A			N/A

Schedule of weighted-average assumptions used in determining the net periodic benefit costs

	Pension Benefits December 31,									Postretirement Pension Benefits December 31,
	2016			2015			2014			2016			2015			2014
Discount rate		4.2	%		3.8	%		4.9	%		11.4	%		9.8	%		10.0	%
Expected long-term rate of return on assets		6.4	%		6.7	%		6.7	%		N/A			N/A			N/A
Increase in future compensation levels		3.3	%		3.5	%		3.5	%		N/A			N/A			N/A

Estimated future benefit payments

(US$ in millions)	Pension Benefit Payments		Postretirement Benefit Payments
2017	$	42	$	8
2018		42		8
2019		44		8
2020		46		7
2021		48		7
2022 and onwards		270		30

Pension Benefits

EMPLOYEE BENEFIT PLANS

Schedule of accumulated benefit obligation in excess of plan assets

	Pension Benefits December 31,
(US$ in millions)	2016		2015
Projected benefit obligation	$	680	$	642
Accumulated benefit obligation	$	617	$	588
Fair value of plan assets	$	484	$	474

Fair values of defined pension plan assets

	Fair Value Measurements at December 31, 2016
	Pension Benefits
(US$ in millions) Asset Category	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	8	$	8	$	—	$	—
Equities:
Mutual Funds(1)		406		366		40		—
Fixed income securities:
Mutual Funds(2)		299		199		100		—
Others(3)		27		—		23		4
Total	$	740	$	573	$	163	$	4

	Fair Value Measurements at December 31, 2015
	Pension Benefits
(US$ in millions) Asset Category	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	81	$	81	$	—	$	—
Equities:
Mutual Funds(1)		354		306		48		—
Fixed income securities:
Mutual Funds(2)		242		80		162		—
Others(3)		12		—		12		—
Total	$	689	$	467	$	222	$	—

(1)	This category represents a portfolio of equity investments comprised of equity index funds that invest in U.S. equities and non-U.S. equities. The U.S. equities are comprised of investments focusing on large, mid and small cap companies and non-U.S. equities are comprised of international, emerging markets and real estate investment trusts.
(2)	This category represents a portfolio of fixed income investments in mutual funds comprised of investment grade U.S. government bonds and notes, foreign government bonds and corporate bonds from diverse industries.
(3)	This category represents a portfolio consisting of a mixture of equity, fixed income and cash.