Commitments And Contingencies (Minimum Contractual Obligations) (Details) $ in Millions	Jun. 30, 2021 USD ($)
Long-term Purchase Commitment [Line Items]
Unrecorded Total	$ 3,895
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	445
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	652
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	738
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	585
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	456
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	122
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	897
Recorded Total	2,308
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	122
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	61
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	53
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	46
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	441
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	22
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	1,563
TotalUnconditionalPurchaseObligationBalanceSheetAmount	6,203
TotalUnconditionalPurchaseObligationBalanceSheetAmountRemainingForCurrentFiscalYear	567
Total Unconditional PurchaseObligationBalanceSheetAmountOneYearAfterFiscalYearEnd	713
Total Unconditional Purchase Obligation Balance Sheet Amount Two Years After Fiscal Year End	791
TotalUnconditionalPurchaseObligationBalanceSheetAmountThreeYearsAfterFiscalYearEnd	631
TotalUnconditionalPurchaseObligationBalanceSheetAmountFourYearsAfterFiscalYearEnd	897
Total Unconditional Purchase Obligation Balance Sheet Amount Five Years After Fiscal Year End	144
TotalUnconditionalPurchaseObligationBalanceSheetAmountThereafter	$ 2,460
Minimum
Long-term Purchase Commitment [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	3 years
Maximum
Long-term Purchase Commitment [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	12 years
Developer Commitments
Long-term Purchase Commitment [Line Items]
Unrecorded Total	$ 1,938
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	241
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	390
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	399
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	389
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	296
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	60
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	163
Marketing [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	662
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	126
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	144
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	138
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	125
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	87
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	11
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	31
Senior Notes Interest [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	877
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	35
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	55
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	55
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	55
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	54
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	36
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	587
Operating Lease Imputed Interest [Member] [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	32
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	6
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	6
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	5
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	3
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	3
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	2
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	7
Other Unrecorded Purchase Obligations [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	220
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	31
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	50
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	132
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	5
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	2
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	0
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
Senior Notes Principal And Interest [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	1,920
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	20
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	400
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	0
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	1,500
Operating Lease [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	166
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	6
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	7
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	9
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	8
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	14
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	13
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	109
Recorded Total	323
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	57
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	58
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	49
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	40
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	34
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	22
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	63
Transition And Other Taxes [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	44
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	24
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	3
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	4
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	6
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	7
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	0
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
License obligations [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	21
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	21
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	0
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	$ 0