XML 94 R78.htm IDEA: XBRL DOCUMENT v3.23.3
Fair Value Measurements (Schedule Of Debt Securities Measured At Fair Value On A Recurring Basis, Unobservable Input Reconciliation) (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2023
Oct. 01, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance at beginning of year $ 35 $ 48
Total unrealized gains (losses) included in other comprehensive income (loss) 1 (3)
Purchases 10 8
Settlements (16) (18)
Balance at end of period $ 30 $ 35