Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Amortized intangible assets:
Other intangible assets, gross	$ 1,770	$ 1,773
Other intangible assets, accumulated amortization	585	481
Other intangible assets, net	1,185	1,292
Patents, Trademarks, and Trade Names [Member]
Amortized intangible assets:
Other intangible assets, gross	469	465
Other intangible assets, accumulated amortization	228	203
Other intangible assets, net	241	262
Customer Lists and Other [Member]
Amortized intangible assets:
Other intangible assets, gross	1,301	1,308
Other intangible assets, accumulated amortization	357	278
Other intangible assets, net	$ 944	$ 1,030