Equity Investments - Summarized Combined Financial Information for Equity Affiliates (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Current assets	$ 2,297	$ 2,488
Total assets	8,882	9,610	$ 9,699
Summarized combined financial information for equity associates for the year:
Current liabilities	1,898	1,995
Gross profit	972	1,208	1,283
Net earnings	264	(382)	282
Purchased equity from affiliates	111	205
Due to affiliates	82	103
Equity Affiliates
Assets
Current assets	476	460
Non-current assets	1,317	1,356
Total assets	1,793	1,816
Summarized combined financial information for equity associates for the year:
Current liabilities	330	303
Other liabilities and deferred items	183	158
Total liabilities and deferred items	513	461
Net assets	1,280	1,355
Net sales	927	908	972
Gross profit	256	232	234
Net earnings	141	$ 114	$ 184
Non-U.S. equity investments impairment charge	36
Remaining carrying value of the equity investment subsequent to the impairment charge	$ 0