Commitments and Contingencies (Purchase Obligations Narrative) (Details) $ in Millions	Sep. 30, 2025 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Unrecorded unconditional purchase obligations	$ 3,200
Unrecorded Unconditional Purchase Obligation, to be Paid, Remainder of Fiscal Year	154
Unrecorded Unconditional Purchase Obligation, to be Paid, Year One	507
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two	443
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three	299
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four	$ 235