Goodwill and Intangible Assets, net (Schedule Of Components For Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (337)	$ (226)
Intangible Assets, Gross (Excluding Goodwill)	1,288	1,090
Intangible assets, net	951	864
Indefinite life trademarks	63	63
Amortization of intangibles	113	97	$ 36
Amortization Expense Recorded As A Reduction Of Revenues	20	5	$ 8
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	845	650
Accumulated amortization	(219)	(158)
Net carrying amount	626	492
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	332	332
Accumulated amortization	(96)	(52)
Net carrying amount	236	280
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	48	45
Accumulated amortization	(22)	(16)
Net carrying amount	$ 26	$ 29