Derivatives (Tables)

3 Months Ended

Dec. 31, 2018

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Details of Derivatives Held to Manage Foreign Currency Risk

The following table provides details of the derivatives held as of December 31, 2018 and September 30, 2018 to manage foreign currency risk.

		Notional Amount
Description	Borrowing	December 31, 2018	September 30, 2018	Hedge Designation
Cross-Currency Swaps	3.4% Notes	USD 250 million swapped to EUR 223 million	USD 250 million swapped to EUR 223 million	Net investment
Forward Foreign Currency Contracts (1)	N/A	USD 14 million	USD 18 million	No designation

⁽¹⁾ Cabot’s forward foreign exchange contracts are denominated in the Canadian dollar, Indonesian rupiah and Czech koruna.

Summary Impact of Cross-currency Swaps to AOCI and Consolidated Statements of Operations

The following tables summarize the impact of the cross-currency swaps to AOCI and the Consolidated Statements of Operations:

	Three Months Ended December 31
	2018		2017			2018			2017			2018		2017
Description	Gain/(Loss) Recognized in AOCI					(Gain)/Loss Reclassified from AOCI into Interest Expense in the Consolidated Statements of Operations						(Gain)/Loss Recognized in Interest Expense in the Consolidated Statements of Operations (Amount Excluded from Effectiveness Testing)
	(In millions)
Cross-currency swaps	$	8	$	(5	)	$	(1	)	$	(1	)	$	—	$	—