Supplemental Income Statement Information (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest expense				$ 448	$ 350	$ 322
Interest income				(80)	(70)	(50)
Loss on extinguishment of debt			$ 96
Pension and postretirement net periodic benefit cost (benefit)				(68)	(73)	(128)
Loss on deconsolidation of Venezuelan subsidiary				162
Total				$ 462	$ 207	$ 144
Venezuela
Loss on deconsolidation of Venezuelan subsidiary		$ 162
Funded | Qualified and Non-qualified Pension Benefits
Pension settlement charge	$ 32