(Identifiable Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 695	$ 686
Accumulated Amortization	427	385
Net Intangible Assets	268	301
Customer relationships and lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	493	483
Accumulated Amortization	273	244
Net Intangible Assets	220	239
Tradenames, patents and trademarks, and developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	170	170
Accumulated Amortization	131	117
Net Intangible Assets	39	53
Land and water rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8	8
Accumulated Amortization	2	2
Net Intangible Assets	6	6
Software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	15	15
Accumulated Amortization	15	15
Net Intangible Assets	0	0
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	9	10
Accumulated Amortization	6	7
Net Intangible Assets	$ 3	$ 3