Equity Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Summarized combined financial information for equity associates for the year:
Net sales	$ 883	$ 755	$ 719
Gross profit	242	182	193
Net earnings	165	145	139
Current assets	466	425
Non-current assets	1,021	779
Total assets	1,487	1,204
Current liabilities	232	190
Other liabilities and deferred items	198	145
Total liabilities and deferred items	430	335
Net assets	1,057	869
Equity earnings	77	60	60
Dividends received	48	38	53
Difference between investment carrying value and amount of underlying equity in net assets	10
Purchased equity from affiliates	180	176
Due to Affiliate	90	76
Non-U.S.
Summarized combined financial information for equity associates for the year:
Equity earnings	45	19	23
U.S.
Summarized combined financial information for equity associates for the year:
Equity earnings	$ 32	$ 41	$ 37