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Equity and Noncontrolling Interests - Schedule of Changes in Redeemable Noncontrolling Interest (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |
Beginning balance | $ 342 |
Dividends | (8) | $ (4)
Ending balance | 335 |
Redeemable Noncontrolling Interest |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |
Beginning balance | 240 | 43
Net income | 13 | 6
Dividends | (31) | (14)
Change in redeemable noncontrolling interest | (186) | 0
Foreign currency translation adjustments | 5 | 7
Ending balance | $ 41 | $ 42

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- Definition Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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