Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 1,553	$ 1,800
Accumulated amortization	(927)	(913)
Intangibles, net	626	887
Indefinite-lived trade names and trademarks	32	32
Total other intangible assets, gross	1,585	1,832
Total other intangible assets, net	658	919
Computer software
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	744	768
Accumulated amortization	(659)	(657)
Intangibles, net	85	111
Patents and licenses
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	95	110
Accumulated amortization	(93)	(107)
Intangibles, net	2	3
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	714	922
Accumulated amortization	(175)	(149)
Intangibles, net	$ 539	$ 773