Borrowings (Tables)

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Long-term Debt Including Unamortized Debt Discounts and Premiums

Long-term debt was net of unamortized debt discounts/premiums and debt issuance costs of $27 million and $24 million at June 30, 2017 and December 31, 2016, respectively.

	June 30, 2017		December 31, 2016
Senior Notes	$	3,204	$	2,558
Medium-Term Notes	250		250
Finance lease obligation	64		68
Total long-term debt	$	3,518	$	2,876

Annual Maturities on Long-term Debt Outstanding

Annual maturities on long-term debt outstanding at June 30, 2017 are as follows:

2017	$	254
2018	908
2019	8
2020	709
2021	9
Thereafter	1,657
Total maturities	3,545
Unamortized discount, net	(13		)
Debt issuance costs	(14		)
Total long-term debt	$	3,518