Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivative Instruments used to manage commodity price and foreign currency exposure

We use derivative instruments to manage selected commodity price and foreign currency exposures as described below.

Derivative Instruments	Type	Hedged Item	Aggregate Notional Amount	Contracts Maturing Through
Commodity	Natural gas swaps	Purchases of natural gas	38 million mmBTUs*	December 31, 2022
Foreign Exchange	Forward contracts	Purchases of products and services denominated in a foreign currency	$95 million	December 31, 2018

* - millions of British Thermal Units

Schedule of pretax effects of derivative instruments

The following are the pre-tax effects of derivative instruments on our consolidated statements of income and our consolidated statements of comprehensive income for the years ended December 31, 2017, 2016 and 2015:

	Amount of Gain or (Loss) Recognized in Other Comprehensive Income (Loss) on Derivatives (Effective Portion)									Location of Gain or (Loss)  Reclassified from AOCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)
(millions)	2017			2016			2015				2017			2016			2015
Derivatives Designated as Hedging Instruments
Commodity contracts	$	(19	)	$	6		$	(14	)	Cost of products sold	$	(4	)	$	(15	)	$	(15	)
Foreign exchange contracts	(5		)	(3		)	12			Cost of products sold	(2		)	5			7
Foreign exchange contracts	—			—			1			Income and gain from the sale of equity method investment to related party	—			—			1
Total	$	(24	)	$	3		$	(1	)		$	(6	)	$	(10	)	$	(7	)

	Location of Gain or (Loss)  Recognized in Income on Derivatives	Amount of Gain or (Loss) Recognized in Income on Derivatives
(millions)		2017			2016		2015
Derivatives Not Designated as Hedging Instruments
Commodity contracts	Cost of products sold	$	(1	)	$	1	$	(3	)
Foreign exchange contracts	Other (income) expense, net	—			—		2
Total		$	(1	)	$	1	$	(1	)

Schedule of fair values of derivative instruments

The fair values of derivative instruments on the consolidated balance sheets are as follows:

	Balance Sheet Location	Fair Value				Balance Sheet Location	Fair Value
(millions)		12/31/17		12/31/16			12/31/17		12/31/16
Derivatives Designated as Hedging Instruments
Commodity contracts	Other current assets	$	1	$	8	Accrued expenses	$	6	$	4
Commodity contracts	Other assets	1		3		Other liabilities	8		5
Foreign exchange contracts	Other current assets	—		1		Accrued expenses	3		1
Total derivatives in hedging relationships		$	2	$	12		$	17	$	10

Derivatives Not Designated as Hedging Instruments
Commodity contracts	Other current assets	$	—	$	1	Accrued expenses	$	—	$	—
Commodity contracts	Other assets	—		—		Other liabilities	—		—
Total derivatives not designated as hedging instruments		$	—	$	1		$	—	$	—
Total derivatives	Total assets	$	2	$	13	Total liabilities	$	17	$	10