Quarterly Data (Unaudited) - Additional Information (Details) $ in Millions	3 Months Ended					12 Months Ended
	Jun. 30, 2020 USD ($) $ / shares	Mar. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 USD ($) $ / shares	Jun. 30, 2019 USD ($) $ / shares	Mar. 31, 2019 USD ($) $ / shares	Dec. 31, 2019 USD ($) $ / shares
Quarterly Data (Unaudited)
Charges related to litigation for PFAS (certain perfluorinated compounds) matters		$ 17
Charges related to litigation for PFAS (certain perfluorinated compounds) matters, net		13
Tax expense reduction from resolution of Natural Resources Damages (NRD) lawsuit with State of Minnesota		52
After tax benefit due to resolution of litigation		$ 39
Impact on diluted earnings per share due to resolution of litigation | $ / shares		0.07
Aggregate gain on sale of businesses	$ 303					$ 129
Impact on diluted earnings related to aggregate gain on sale of businesses | $ / shares	0.52					0.22
Divestiture-related restructuring charges	$ 46
Impact on diluted earnings per share related to divestiture-related restructuring charges | $ / shares	$ 0.08
Net income adjustment due to significant litigation-related charges related to historical PFAS (certain perfluorinated compounds) manufacturing operations and coal mine dust respirator mask lawsuits						$ 590
Impact on diluted earnings per share due to significant litigation-related charges related to historical PFAS (certain perfluorinated compounds) manufacturing operations and coal mine dust respirator mask lawsuits | $ / shares						$ 1.01
Initial net income adjustment due to significant litigation-related charges related to historical PFAS (certain perfluorinated compounds) manufacturing operations and coal mine dust respirator mask lawsuits					$ 424
Initial impact on diluted earnings per share due to significant litigation-related charges related to historical PFAS (certain perfluorinated compounds) manufacturing operations and coal mine dust respirator mask lawsuits | $ / shares					$ 0.72
Subsequent net income adjustment due to significant litigation-related charges related to historical PFAS (certain perfluorinated compounds) manufacturing operations and coal mine dust respirator mask lawsuits			$ 166
Subsequent impact on diluted earnings per share due to significant litigation-related charges related to historical PFAS (certain perfluorinated compounds) manufacturing operations and coal mine dust respirator mask lawsuits | $ / shares			$ 0.29
Net income adjustment related to deconsolidation of Venezuelan subsidiary				$ 162
Impact on diluted earnings related to deconsolidation of Venezuelan subsidiary | $ / shares				$ 0.28