H. Accumulated Other Comprehensive Income (Loss)

Comprehensive income combines net income (loss) and other comprehensive income items, which are reported as components of stockholders’ equity in the accompanying Consolidated Balance Sheets.

Changes in each component of AOCI, net of tax, were as follows:

	Currency Translation Adjustment			Unrealized Gains on Investments			Pension and Other Postretirement Benefit Liability Adjustments			Total
	(In millions)
Balance at September 30, 2017, attributable to Cabot Corporation	$	(204	)	$	2		$	(57	)	$	(259	)
Other comprehensive income (loss) before reclassifications		—			—			—			—
Amounts reclassified from AOCI		(1	)		—			—			(1	)
Less: Other comprehensive income (loss) attributable to noncontrolling interests		3			—			—			3
Balance at December 31, 2017, attributable to Cabot Corporation		(208	)		2			(57	)		(263	)
Other comprehensive income (loss) before reclassifications		59			—			—			59
Amounts reclassified from AOCI		(1	)		—			—			(1	)
Less: Other comprehensive income (loss) attributable to noncontrolling interests		4			—			—			4
Balance at March 31, 2018, attributable to Cabot Corporation		(154	)		2			(57	)		(209	)
Other comprehensive income (loss) before reclassifications		(109	)		(1	)		—			(110	)
Amounts reclassified from AOCI		(1	)		—			—			(1	)
Less: Other comprehensive income (loss) attributable to noncontrolling interests		(7	)		—			—			(7	)
Balance at June 30, 2018, attributable to Cabot Corporation	$	(257	)	$	1		$	(57	)	$	(313	)

The amounts reclassified out of AOCI and into the Consolidated Statements of Operations in the three and nine months ended June 30, 2018 and 2017 were as follows:

	Affected Line Item in the Consolidated	Three Months Ended June 30						Nine Months Ended June 30
	Statements of Operations	2018			2017			2018			2017
		(In millions)
Derivatives: net investment hedges
(Gains) losses reclassified to interest expense	Interest expense	$	(2	)	$	—		$	(4	)	$	—
Pension and other postretirement benefit liability adjustment
Amortization of actuarial losses	Net Periodic Benefit Cost - see Note D for details		1			1			2			4
Amortization of prior service credit	Net Periodic Benefit Cost - see Note D for details		(1	)		(1	)		(2	)		(2	)
Total before tax			(2	)		—			(4	)		2
Tax impact	Provision (benefit) for income taxes		1			—			1			—
Total after tax		$	(1	)	$	—		$	(3	)	$	2