Basis of Presentation and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Schedule of Debt Issusance Costs Prior Period Adjustments

The retrospective adjustment to the December 31, 2015 consolidated balance sheet is shown below.

	As Previously Reported		December 31, 2015 Adjustment Effect			As Adjusted
	$ in millions
Other long-term assets	$	333	$	(43	)	$	290
Long-term debt, net	$	10,354	$	43		$	10,311