Investments In And Advances To Affiliates (Combined Balance Sheets And Statements Of Earnings Of The Company's Unconsolidated Affiliates) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Combined balance sheets and statements of earnings of the Company's unconsolidated affiliates:
Current assets	$ 25,145	$ 25,475
Non-current assets	21,347	21,077
Current liabilities	(20,587)	(20,362)
Non-current liabilities	(5,830)	(8,449)
Noncontrolling interests	(943)	(947)
Net assets	19,132	16,794
Net sales	45,296	47,980	$ 50,591
Gross profit	4,375	4,530	4,558
Net income	$ 1,119	$ 1,428	$ 1,561