Other Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Income and Expenses [Abstract]
Gain on sale of assets	$ 7	$ 33	$ 28
Royalty income	8	10	11
Share of net earnings of equity affiliates (See Note 6)	11	16	12
Gain on disposal of ownership interest in business affiliate	0	0	25
Income from a legal settlement	0	0	18
Other	63	55	56
Total	89	114	150
Gain on sale of land	$ 0	$ (26)	$ 0