CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Millions, $ in Millions |
Total |
Cumulative Effect, Period of Adoption, Adjustment |
Series B Preferred Stock |
Series C Preferred Stock |
Class A common stock |
Preferred Stock |
Preferred Stock
Conversion of Series A Preferred Stock Upon Sale Into Public Market
|
Preferred Stock
Series A Preferred Stock
|
Preferred Stock
Series A Preferred Stock
Conversion of Series A Preferred Stock Upon Sale Into Public Market
|
[2] |
Preferred Stock
Series B Preferred Stock
|
Preferred Stock
Series C Preferred Stock
|
Common Stock
Class A common stock
|
Common Stock
Class A common stock
Conversion of Series A Preferred Stock Upon Sale Into Public Market
|
Common Stock
Class A common stock
Conversion of Class C Common Stock Upon Sale Into Public Market
|
Common Stock
Class B common stock
|
Common Stock
Class C common stock
|
Common Stock
Class C common stock
Conversion of Class C Common Stock Upon Sale Into Public Market
|
Right to Recover for Covered Losses |
Additional Paid-In Capital |
Additional Paid-In Capital
Conversion of Series A Preferred Stock Upon Sale Into Public Market
|
Accumulated Income |
Accumulated Income
Cumulative Effect, Period of Adoption, Adjustment
|
Accumulated Other Comprehensive Income (Loss), Net |
Accumulated Other Comprehensive Income (Loss), Net
Cumulative Effect, Period of Adoption, Adjustment
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Adoption of new accounting standards |
|
$ 32,760
|
|
|
|
|
$ 5,526
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ (52)
|
$ 16,900
|
|
$ 9,508
|
|
$ 878
|
|
Beginning Balance (in shares) at Sep. 30, 2017 |
|
|
|
|
|
|
|
|
|
|
|
2
|
3
|
1,818
|
|
|
245
|
13
|
|
|
|
|
|
|
|
|
|
Beginning Balance at Sep. 30, 2017 |
|
32,760
|
|
|
|
|
5,526
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(52)
|
16,900
|
|
9,508
|
|
878
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Net income |
|
10,301
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10,301
|
|
|
|
Other comprehensive income (loss), net of tax |
|
(331)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(331)
|
|
Comprehensive income |
|
9,970
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Adoption of new accounting standards |
|
34,006
|
$ 392
|
|
|
|
5,470
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(7)
|
16,678
|
|
11,318
|
$ 385
|
547
|
$ 7
|
VE territory covered losses incurred |
|
(11)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(11)
|
|
|
|
|
|
|
Recovery through conversion rate adjustment |
|
|
|
$ 35
|
$ 21
|
|
(56)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
56
|
|
|
|
|
|
|
Issuance of series A preferred stock |
|
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Conversion of stock upon sales into public market (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4
|
|
|
(1)
|
|
|
|
|
|
|
|
|
Vesting of restricted stock and performance-based shares (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
2
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Share-based compensation, net of forfeitures (in shares) |
[1] |
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Share-based compensation, net of forfeitures |
|
327
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
327
|
|
|
|
|
|
Restricted stock and performance-based shares settled in cash for taxes (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
(1)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Restricted stock and performance-based shares settled in cash for taxes |
|
(94)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(94)
|
|
|
|
|
|
Cash proceeds from issuance of common stock under employee equity plans (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
3
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash proceeds from issuance of common stock under employee equity plans |
|
164
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
164
|
|
|
|
|
|
Cash dividends declared and paid, at a quarterly amount per Class A share |
|
(1,918)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(1,918)
|
|
|
|
Repurchase of class A common stock (in shares) |
|
|
|
|
|
(58)
|
|
|
|
|
|
|
|
(58)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Repurchase of class A common stock |
|
(7,192)
|
|
|
|
$ (7,192)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(619)
|
|
(6,573)
|
|
|
|
Ending Balance (in shares) at Sep. 30, 2018 |
|
|
|
|
|
|
|
|
|
|
|
2
|
3
|
1,768
|
|
|
245
|
12
|
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2018 |
|
34,006
|
392
|
|
|
|
5,470
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(7)
|
16,678
|
|
11,318
|
385
|
547
|
7
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Adoption of new accounting standards |
|
34,006
|
392
|
|
|
|
5,470
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(7)
|
16,678
|
|
11,318
|
385
|
547
|
7
|
Net income |
|
12,080
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12,080
|
|
|
|
Other comprehensive income (loss), net of tax |
|
(1,204)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(1,204)
|
|
Comprehensive income |
|
10,876
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Adoption of new accounting standards |
|
34,684
|
0
|
|
|
|
5,462
|
|
|
|
|
$ 2,285
|
$ 3,177
|
|
|
|
|
|
|
|
(171)
|
16,541
|
|
13,502
|
25
|
(650)
|
(25)
|
VE territory covered losses incurred |
|
(172)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(172)
|
|
|
|
|
|
|
Recovery through conversion rate adjustment |
|
|
|
6
|
2
|
|
(8)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8
|
|
|
|
|
|
|
Issuance of series A preferred stock |
|
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Conversion of stock upon sales into public market (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2
|
|
|
(1)
|
|
|
|
|
|
|
|
|
Vesting of restricted stock and performance-based shares (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
3
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Share-based compensation, net of forfeitures (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Share-based compensation, net of forfeitures |
|
407
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
407
|
|
|
|
|
|
Restricted stock and performance-based shares settled in cash for taxes (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
(1)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Restricted stock and performance-based shares settled in cash for taxes |
|
(111)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(111)
|
|
|
|
|
|
Cash proceeds from issuance of common stock under employee equity plans (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
2
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash proceeds from issuance of common stock under employee equity plans |
|
162
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
162
|
|
|
|
|
|
Cash dividends declared and paid, at a quarterly amount per Class A share |
|
(2,269)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(2,269)
|
|
|
|
Repurchase of class A common stock (in shares) |
|
|
|
|
|
(56)
|
|
|
|
|
|
|
|
(56)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Repurchase of class A common stock |
|
(8,607)
|
|
|
|
$ (8,607)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(595)
|
|
(8,012)
|
|
|
|
Ending Balance (in shares) at Sep. 30, 2019 |
|
|
|
|
|
|
|
|
0
|
|
|
2
|
3
|
1,718
|
|
|
245
|
11
|
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2019 |
|
34,684
|
0
|
|
|
|
5,462
|
|
|
|
|
$ 2,285
|
$ 3,177
|
|
|
|
|
|
|
|
(171)
|
16,541
|
|
13,502
|
25
|
(650)
|
(25)
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Adoption of new accounting standards |
|
34,684
|
0
|
|
|
|
5,462
|
|
|
|
|
2,285
|
3,177
|
|
|
|
|
|
|
|
(171)
|
16,541
|
|
13,502
|
25
|
(650)
|
(25)
|
Net income |
|
10,866
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10,866
|
|
|
|
Other comprehensive income (loss), net of tax |
|
1,029
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,029
|
|
Comprehensive income |
|
11,895
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Adoption of new accounting standards |
|
34,684
|
$ 0
|
|
|
|
5,086
|
|
|
|
|
1,106
|
1,543
|
|
|
|
|
|
|
|
(39)
|
16,721
|
|
14,088
|
$ 25
|
354
|
$ (25)
|
VE territory covered losses incurred |
|
(37)
|
|
|
|
|
|
|
|
|
|
0
|
0
|
|
|
|
|
|
|
|
(37)
|
|
|
|
|
|
|
Recovery through conversion rate adjustment |
|
5
|
|
72
|
92
|
|
(164)
|
|
|
|
|
$ 72
|
$ 92
|
|
|
|
|
|
|
|
169
|
|
|
|
|
|
|
Issuance of series A preferred stock (in shares) |
[2] |
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of series A preferred stock |
|
(5)
|
|
$ 3,084
|
$ 4,216
|
|
(5)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Conversion of stock upon sales into public market (in shares) |
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
3
|
3
|
|
|
0
|
[2] |
|
|
|
|
|
|
|
Conversion of series A preferred stock upon sales into public market |
|
|
|
|
|
|
|
$ (207)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 207
|
|
|
|
|
Vesting of restricted stock and performance-based shares (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
3
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Share-based compensation, net of forfeitures (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Share-based compensation, net of forfeitures |
|
416
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
416
|
|
|
|
|
|
Restricted stock and performance-based shares settled in cash for taxes (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
(1)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Restricted stock and performance-based shares settled in cash for taxes |
|
(160)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(160)
|
|
|
|
|
|
Cash proceeds from issuance of common stock under employee equity plans (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash proceeds from issuance of common stock under employee equity plans |
|
190
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
190
|
|
|
|
|
|
Cash dividends declared and paid, at a quarterly amount per Class A share |
|
(2,664)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(2,664)
|
|
|
|
Repurchase of class A common stock (in shares) |
|
|
|
|
|
(44)
|
|
|
|
|
|
|
|
(44)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Repurchase of class A common stock |
|
(8,114)
|
|
|
|
$ (8,114)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(473)
|
|
(7,641)
|
|
|
|
Ending Balance (in shares) at Sep. 30, 2020 |
|
|
|
|
|
|
|
|
0
|
[2] |
|
2
|
3
|
1,683
|
|
|
245
|
11
|
|
|
|
|
|
|
|
|
|
Ending Balance at Sep. 30, 2020 |
|
36,210
|
|
|
|
|
5,086
|
|
|
|
|
$ 1,106
|
$ 1,543
|
|
|
|
|
|
|
|
(39)
|
16,721
|
|
14,088
|
|
354
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
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Adoption of new accounting standards |
|
$ 36,210
|
|
|
|
|
$ 5,086
|
|
|
|
|
$ 1,106
|
$ 1,543
|
|
|
|
|
|
|
|
$ (39)
|
$ 16,721
|
|
$ 14,088
|
|
$ 354
|
|
|
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