Other Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Royalty income	$ 15	$ 20	$ 29
Share of net earnings of equity affiliates (See Note 5)	12	11	101
Gain on sale of assets	6	4	6
Other	61	90	79
Total	176	125	215
Other Business Affiliates [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposals of ownership interests in business affiliates	$ 82	$ 0	$ 0