Equity Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Equity Investments Information
Equity earnings	$ 77	$ 77	$ 60
Dividends received	72	48	38
Equity method investments, assets
Current assets	655	466
Non-current assets	1,306	1,021
Total assets	1,961	1,487
Equity method investments, liabilities and equity
Current liabilities	342	232
Other liabilities and deferred items	242	198
Total liabilities and deferred items	584	430
Net assets	1,377	1,057
Summarized combined financial information for equity associates for the year:
Net sales	972	883	755
Gross profit	234	242	182
Net earnings	184	165	145
Purchased equity from affiliates	255	180
Due to affiliates	111	90
Difference between investment carrying value and amount of underlying equity in net assets	9
Non-U.S.
Equity Investments Information
Equity earnings	52	45	19
U.S.
Equity Investments Information
Equity earnings	$ 25	$ 32	$ 41