Debt (Tables)

9 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Schedule of Debt

The Company had outstanding debt as follows:

	June 30, 2020		September 30, 2019		Effective Interest Rate(1)
	(in millions, except percentages)
2.20% Senior Notes due December 2020	$	3,000	$	3,000	2.30	%
2.15% Senior Notes due September 2022	1,000		1,000		2.30	%
2.80% Senior Notes due December 2022	2,250		2,250		2.89	%
3.15% Senior Notes due December 2025	4,000		4,000		3.26	%
1.90% Senior Notes due April 2027	1,500		—		2.02	%
2.75% Senior Notes due September 2027	750		750		2.91	%
2.05% Senior Notes due April 2030	1,500		—		2.13	%
4.15% Senior Notes due December 2035	1,500		1,500		4.23	%
2.70% Senior Notes due April 2040	1,000		—		2.80	%
4.30% Senior Notes due December 2045	3,500		3,500		4.37	%
3.65% Senior Notes due September 2047	750		750		3.73	%
Total debt	20,750		16,750
Unamortized discounts and debt issuance costs	(134)		(108)
Hedge accounting fair value adjustments(2)	263		87
Total carrying value of debt	$	20,879	$	16,729
Reported as:
Current maturities of debt	$	2,999	$	—
Long-term debt	17,880		16,729
Total carrying value of debt	$	20,879	$	16,729

⁽¹⁾Effective interest rates disclosed do not reflect hedge accounting adjustments.

(2)Represents the change in fair value of interest rate swap agreements entered into on a portion of certain outstanding senior notes.

Schedule of Maturities of Long-term Debt

Future principal payments on the Company’s outstanding debt are as follows:

	For the Years Ending September 30,
	2020		2021		2022		2023		2024		Thereafter		Total
	(in millions)
Future principal payments	$	—	$	3,000	$	1,000	$	2,250	$	—	$	14,500	$	20,750