Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring and Related Cost
Restructuring costs	$ 25	$ 147	$ 89	$ 184
Employee Separation Charges [Roll Forward]
Restructuring Reserve, Beginning Balance			164	48
Restructuring Reserve, Ending Balance	144	87	144	87
Increase in liability (separation charges)			62	134
Payments for Restructuring			(82)	(95)
Construction Industries [Member]
Restructuring and Related Cost
Restructuring costs	0	4	0	5
Resource Industries
Restructuring and Related Cost
Restructuring costs	0	15	0	16
Energy & Transportation
Restructuring and Related Cost
Restructuring costs	0	17	0	21
Financial Products Segment
Restructuring and Related Cost
Restructuring costs	0	1	0	1
Employee separations | Other Operating Income (Expense)
Restructuring and Related Cost
Restructuring costs	17	123	62	134
Contract terminations | Other Operating Income (Expense)
Restructuring and Related Cost
Restructuring costs	0	2	0	3
Long-lived asset impairments | Other Operating Income (Expense)
Restructuring and Related Cost
Restructuring costs	(7)	14	4	23
Other | Cost of Sales
Restructuring and Related Cost
Restructuring costs	$ 15	$ 8	$ 23	$ 24