Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Other current assets
Derivative assets-current	$ 88	$ 37
Insurance related (receivables, prepaid expenses and other)	103	71
Other	158	158
Total other current assets	349	266
Other assets
Deferred income taxes	365	511
Prepaid pension and post retirement	208	237
Insurance related receivables and other	68	63
Cash surrender value of life insurance policies	251	241
Equity method investments	70	70
Equity and other investments	118	80
Other	265	193
Total other assets	1,345	1,395
Other current liabilities
Accrued trade payables	558	516
Deferred revenue	617	513
Derivative liabilities	32	135
Employee benefits and withholdings	228	208
Contingent liability claims and other	244	179
Property, sales-related and other taxes	273	277
Pension and postretirement benefits	76	69
Other	747	812
Total other current liabilities	2,775	2,709
Other liabilities
Long term income taxes payable	1,274	1,287
Employee benefits	299	319
Contingent liability claims and other	789	727
Capital lease obligations	75	60
Deferred income taxes	279	235
Other	294	334
Total other liabilities	3,010	2,962
Drafts payable
Drafts payable on demand included in Accounts payable	$ 104	$ 74