Debt (Tables)

6 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Summary of Cash Flows Associated with Issuance and Maturities of Commercial Paper

The following table provides a summary of cash flows associated with the issuance and maturities of Commercial Paper for the six months endedMarch 31, 2018 and April 1, 2017 (in millions):

	Six Months Ended
	March 31, 2018			April 1, 2017
Maturities 90 days or less:
Proceeds from/(Repayments of) commercial paper, net	$	4,070		$	(1,318	)
Maturities greater than 90 days:
Proceeds from commercial paper	5,550			7,057
Repayments of commercial paper	(9,619		)	(3,860		)
Proceeds from/(Repayments of) commercial paper, net	(4,069		)	3,197
Total change in commercial paper, net	$	1		$	1,879

Summary of Term Debt

The following table provides a summary of the Company’s term debt as of March 31, 2018 and September 30, 2017:

	Maturities			March 31, 2018								September 30, 2017
				Amount (in millions)			Effective Interest Rate					Amount (in millions)			Effective Interest Rate
2013 debt issuance of $17.0 billion:
Floating-rate notes	2018		2018	$	2,000			1.10%		1.10	%	$	2,000			1.10%		1.10	%
Fixed-rate 1.000% – 3.850% notes	2018	–	2043	12,500				1.08%	–	3.91	%	12,500				1.08%	–	3.91	%
2014 debt issuance of $12.0 billion:
Floating-rate notes	2019		2019	1,000				2.09%		2.09	%	1,000				1.61%		1.61	%
Fixed-rate 2.100% – 4.450% notes	2019	–	2044	8,500				2.09%	–	4.48	%	8,500				1.61%	–	4.48	%
2015 debt issuances of $27.3 billion:
Floating-rate notes	2019	–	2020	1,537				1.87%	–	2.12	%	1,549				1.56%	–	1.87	%
Fixed-rate 0.350% – 4.375% notes	2019	–	2045	25,094				0.28%	–	4.51	%	24,522				0.28%	–	4.51	%
2016 debt issuances of $24.9 billion:
Floating-rate notes	2019	–	2021	1,350				1.93%	–	3.05	%	1,350				1.45%	–	2.44	%
Fixed-rate 1.100% – 4.650% notes	2019	–	2046	23,120				1.13%	–	4.78	%	23,645				1.13%	–	4.78	%
2017 debt issuances of $28.7 billion:
Floating-rate notes	2019	–	2022	3,250				1.88%	–	2.30	%	3,250				1.38%	–	1.81	%
Fixed-rate 0.875% – 4.300% notes	2019	–	2047	25,786				1.54%	–	4.30	%	25,705				1.51%	–	4.30	%
First quarter 2018 debt issuance of $7.0 billion:
Fixed-rate 1.800% notes			2019	1,000						1.83	%	—						—	%
Fixed-rate 2.000% notes			2020	1,000						2.03	%	—						—	%
Fixed-rate 2.400% notes			2023	750						2.14	%	—						—	%
Fixed-rate 2.750% notes			2025	1,500						2.77	%	—						—	%
Fixed-rate 3.000% notes			2027	1,500						2.54	%	—						—	%
Fixed-rate 3.750% notes			2047	1,250						3.80	%	—						—	%
Total term debt				111,137								104,021
Unamortized premium/(discount) and issuance costs, net				(236		)						(225		)
Hedge accounting fair value adjustments				(1,041		)						(93		)
Less: Current portion of long-term debt				(8,498		)						(6,496		)
Total long-term debt				$	101,362							$	97,207