Short-term borrowings consist of the following:



	2016			2015
Commercial paper	$	770		$	1,532
Current portion of long-term debt	400			—
Current portion of Canadian credit facility	42			—
Variable-rate bank borrowings	6			1
Fixed-rate bank borrowings	—			9
Capital leases	2			1
Other⁽¹⁾	(1		)	—
Total short-term borrowings	$	1,219		$	1,543

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⁽¹⁾	Includes unamortized net discount/premium on debt issuances and debt issuance costs.

As of July 31, 2016, the weighted-average interest rate of commercial paper, which consisted of U.S. borrowings, was 0.74%. As of August 2, 2015, the weighted-average interest rate of commercial paper, which consisted of U.S. borrowings, was 0.58%.

At July 31, 2016, we had $1,219 of short-term borrowings due within one year, of which $770 was comprised of commercial paper borrowings. As of July 31, 2016, we issued $47 of standby letters of credit. We have a committed revolving credit facility totaling $2,200 that matures in December 2018. This U.S. facility remained unused at July 31, 2016, except for $3 of standby letters of credit that we issued under it. The U.S. facility supports our commercial paper programs and other general corporate purposes. We may increase the commitment under the U.S. facility up to an additional $500, upon the agreement of either existing lenders or of additional banks not currently parties to the facility. In July 2016, we entered into a committed revolving credit facility totaling CAD $280, or $215, that matures in July 2019. The Canadian facility's commitment mandatorily reduces to CAD $225 in July 2017 and to CAD $185 in July 2018. The Canadian facility supports general corporate purposes. As of July 31, 2016, we borrowed CAD $280, or $215, at a rate of 1.78% pursuant to this facility, of which CAD $55, or $42, is classified as short-term borrowings. In August 2016, we reduced the borrowings and commitment under the Canadian facility by CAD $35, or $27.

Long-term debt consists of the following:



Type	Fiscal Year of Maturity	Rate	2016			2015
Notes	2017	3.05%	$	400		$	400
Notes	2019	4.50%	300			300
Notes	2021	4.25%	500			500
Debentures	2021	8.88%	200			200
Notes	2023	2.50%	450			450
Notes	2025	3.30%	300			300
Notes	2043	3.80%	400			400
Canadian credit facility	2019	Variable	215			—
Capital leases			8			10
Other⁽¹⁾			(18		)	(21		)
Total			$	2,755		$	2,539
Less current portion⁽¹⁾			441			—
Total long-term debt			$	2,314		$	2,539

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⁽¹⁾	Includes unamortized net discount/premium on debt issuances and debt issuance costs.

In March 2015, we issued $300 of 3.30% notes that mature on March 19, 2025. Interest on the notes is due semi-annually on March 19 and September 19, commencing on September 19, 2015. The notes may be redeemed in whole, or in part, at our option at any time at the applicable redemption price. In certain circumstances, we may be required to repurchase some or all of the notes upon a change in control of our company and a downgrade of the notes below investment grade. The net proceeds were used for general corporate purposes.

Principal amounts of long-term debt, including the current portion of long-term debt in Short-term borrowings, mature as follows: $444 in 2017; $32 in 2018; $442 in 2019; $1 in 2020; $700 in 2021; and a total of $1,156 in periods beyond 2021.