Recent Accounting Literature (Tables)

3 Months Ended

Mar. 31, 2018

Accounting Standards Update 2017-07 [Member]

Schedule Of New Accounting Pronouncement Adoption

	For the three months ended March 31, 2017
			Impact of adoption
($ in millions)	As Reported		of ASU 2017-07		As Restated
Operating expenses:
Network related expenses	$	494	$	(1)	$	493
Selling, general and administrative expenses	$	544	$	(2)	$	542
Pension settlement costs	$	43	$	(43)	$	-
Non-operating income/expenses:
Investment and other income, net	$	3	$	(3)	$	-
Pension settlement costs	$	-	$	43	$	43