Goodwill and Other Identifiable Intangible Assets (Identifiable Intangible Assets with Finite Lives) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Carrying amount of acquired trademarks with indefinite lives	$ 1,140	$ 1,158
Gross carrying amount	2,278	2,260
Accumulated amortization	(1,446)	(1,373)
Net	832	887
Intangible assets, gross (excluding goodwill)	3,418	3,418
Intangible assets, accumulated amortization (excluding goodwill)		1,373
Total Identifiable Intangible Assets	1,972	2,045
Aggregate amortization expense of identifiable intangible assets	143	129	$ 121
Estimated future amortization of identifiable intangible assets in 2018	125
Estimated future amortization of identifiable intangible assets in 2019	100
Estimated future amortization of identifiable intangible assets in 2020	95
Estimated future amortization of identifiable intangible assets in 2021	85
Estimated future amortization of identifiable intangible assets in 2022	80
Acquired technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	648	613
Accumulated amortization	(515)	(489)
Net	133	124
Customer-related
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,396	1,437
Accumulated amortization	(798)	(762)
Net	598	675
Tradenames
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	190	166
Accumulated amortization	(96)	(87)
Net	94	79
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	44	44
Accumulated amortization	(37)	(35)
Net	$ 7	$ 9