Taxes on Income - Provision (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings before income taxes:
U.S									$ 224	$ 193	$ 147
Foreign									384	440	367
Earnings before taxes	$ 123	$ 119	$ 226	$ 140	$ 123	$ 192	$ 166	$ 152	608	633	514
Current
U.S.									(1)	30	6
State and local									7	5
Foreign									110	115	77
Total current									116	150	83
Deferred
U.S.									(26)	21	92
State and local									(1)	9	7
Foreign									(18)	5	(17)
Deferred Income Tax Expense (Benefit), Total									(45)	35	82
Income Tax Expense (Benefit), Total									$ 71	$ 185	$ 165