Other Intangible Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2016

Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]

Schedule of Finite-Lived Intangible Assets and Liabilities

Intangible assets and liabilities were as follows (in millions):

	As of June 30, 2016				As of December 31, 2015
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Intangible assets	$	660	$	211	$	660	$	192
Intangible liabilities	$	1,403	$	786	$	1,403	$	736

Schedule of Finite-Lived Intangible Assets and Liabilities Amortization Expense

Amortization of intangible assets and liabilities was as follows (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Amortization of intangible assets	$	9	$	8	$	19	$	39
Amortization of intangible liabilities	$	25	$	27	$	50	$	61

Schedule of Finite-Lived Intangible Assets and Liabilities, Future Amortization Expense

Amortization of intangible assets and liabilities for the next five years is expected to approximate the following (in millions):

	Amortization of intangible assets		Amortization of intangible liabilities
Remainder of 2016	$	20	$	51
2017	$	36	$	96
2018	$	33	$	90
2019	$	31	$	27
2020	$	31	$	26