Other Operating and Non-Operating Income (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Nonoperating Income (Expense) [Abstract]
Investment income, net of adjustments	$ 0	$ 4,000,000
Amortization of debt charges	0	0	$ (1,000,000)	$ (1,000,000)
Interest Expense	(4,000,000)	(6,000,000)	(9,000,000)	(12,000,000)
Interest Income	0	1,000,000	1,000,000	1,000,000
Available-for-sale Securities, Gross Realized Gains	0	3,000,000	0	3,000,000
SERP market adjustments	0	0	0	1,000,000
Investment income			1,000,000	3,000,000
Net periodic pension cost, excluding service cost	0	0	0	(1,000,000)
Gain (Loss) on Extinguishment of Debt	0	0	(11,000,000)	0
Foreign currency gain (loss)	(6,000,000)	(1,000,000)	(5,000,000)	5,000,000
Other non-operating items	(6,000,000)	(1,000,000)	(16,000,000)	4,000,000
Other Income and Expenses [Abstract]
Proceeds from Insurance Settlement, Operating Activities	2,000,000	0	2,000,000	0
Canadian wage subsidies	0	4,000,000	0	4,000,000
Product line discontinuance charges	0	(10,000,000)	0	(10,000,000)
Interest expense	(3,000,000)	(6,000,000)	(8,000,000)	(11,000,000)
Other operating income, other	1,000,000	2,000,000	1,000,000	2,000,000
Other Operating Charges And Credits, Net	3,000,000	(6,000,000)	3,000,000	(8,000,000)
Restructuring Charges	$ 0	$ (2,000,000)	$ 0	$ (4,000,000)