Subsequent Event - Narrative (Details) - USD ($)		3 Months Ended			9 Months Ended
	Apr. 17, 2020	Jun. 30, 2020	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2020
Subsequent Event [Line Items]
Pre-tax charges			$ 9,000,000	$ 103,000,000
Cash payments			73,000,000	18,000,000
Non-cash charges related to asset write Offs and accelerated depreciation			$ 4,000,000	$ 0
Facility Closing | Plan to Permanently Close Gadsden, Alabama Manufacturing Facility as Part of Strategy to Strengthen Competitiveness of Manufacturing Footprint | Scenario Forecast
Subsequent Event [Line Items]
Pre-tax charges		$ 170,000,000
Cash payments					$ 45,000,000
Subsequent Event | Facility Closing | Plan to Permanently Close Gadsden, Alabama Manufacturing Facility as Part of Strategy to Strengthen Competitiveness of Manufacturing Footprint
Subsequent Event [Line Items]
Severance restructuring costs	$ 55,000,000
Subsequent Event | Facility Closing | Plan to Permanently Close Gadsden, Alabama Manufacturing Facility as Part of Strategy to Strengthen Competitiveness of Manufacturing Footprint | Other Associate
Subsequent Event [Line Items]
Other restructuring related costs	40,000,000
Subsequent Event | Facility Closing | Plan to Permanently Close Gadsden, Alabama Manufacturing Facility as Part of Strategy to Strengthen Competitiveness of Manufacturing Footprint | Minimum
Subsequent Event [Line Items]
Estimated total pre-tax charges	280,000,000
Expected pre-tax cash charges	170,000,000
Other restructuring related costs	75,000,000
Non-cash charges related to asset write Offs and accelerated depreciation	110,000,000
Subsequent Event | Facility Closing | Plan to Permanently Close Gadsden, Alabama Manufacturing Facility as Part of Strategy to Strengthen Competitiveness of Manufacturing Footprint | Maximum
Subsequent Event [Line Items]
Estimated total pre-tax charges	295,000,000
Expected pre-tax cash charges	180,000,000
Other restructuring related costs	85,000,000
Non-cash charges related to asset write Offs and accelerated depreciation	$ 115,000,000