Regulatory Matters, Commitments, Contingencies And Environmental Liabilities (Tables)

3 Months Ended

Mar. 31, 2017

Regulatory Matters, Commitments, Contingencies And Environmental Liabilities [Abstract]

Schedule of Rent Expense [Table Text Block]

We have certain non-cancelable leases for property and equipment, which require fixed monthly rental payments and expire at various dates through 2034.  The table below reflects rental expense under these operating leases included in operating expenses in the accompanying statements of operations, which include contingent rentals, and rental expense recovered through related sublease rental income:

	Three Months Ended March 31,
	2017			2016
Rental expense(1)	$	54		$	51
Less: Sublease rental income	(6		)	(7		)
Rental expense, net	$	48		$	44

⁽¹⁾  Includes contingent rentals totaling

Environmental Exit Costs by Cost

	March 31, 2017		December 31, 2016
Current	$	32	$	31
Non-current	321		318
Total environmental liabilities	$	353	$	349