Goodwill and Identifiable Intangible Assets, Identifiable Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets Subject to Amortization [Abstract]
Finite-lived intangible assets, gross carrying amount	$ 762	$ 611
Finite-lived intangible assets, accumulated amortization	438	385
Net carrying amount	324	226
Amortization expense	49	43	$ 33
Estimated Amortization Expense for Identifiable Intangible Assets [Abstract]
Estimated amortization expense, 2019	51
Estimated amortization expense, 2020	47
Estimated amortization expense, 2021	42
Estimated amortization expense, 2022	37
Estimated amortization expense, 2023	28
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, gross carrying amount	828	677
Intangible assets, net carrying amount	390	292
IPR&D [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 66	66
Customer Contractual Relationships [Member]
Finite-Lived Intangible Assets Subject to Amortization [Abstract]
Finite lived intangible assets, weighted average amortization period	16 years
Finite-lived intangible assets, gross carrying amount	$ 468	393
Finite-lived intangible assets, accumulated amortization	288	257
Net carrying amount	$ 180	136
Technology [Member]
Finite-Lived Intangible Assets Subject to Amortization [Abstract]
Finite lived intangible assets, weighted average amortization period	9 years
Finite-lived intangible assets, gross carrying amount	$ 245	189
Finite-lived intangible assets, accumulated amortization	132	114
Net carrying amount	$ 113	75
Other [Member]
Finite-Lived Intangible Assets Subject to Amortization [Abstract]
Finite lived intangible assets, weighted average amortization period	9 years
Finite-lived intangible assets, gross carrying amount	$ 49	29
Finite-lived intangible assets, accumulated amortization	18	14
Net carrying amount	$ 31	$ 15