Commitments And Contingencies (Minimum Contractual Obligations) (Details) $ in Millions	Dec. 31, 2021 USD ($)
Long-term Purchase Commitment [Line Items]
Unrecorded Total	$ 3,896
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	104
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	683
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	773
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	706
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	548
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	173
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	909
Recorded Total	2,316
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	48
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	79
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	65
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	58
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	451
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	29
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	1,586
TotalUnconditionalPurchaseObligationBalanceSheetAmount	6,212
TotalUnconditionalPurchaseObligationBalanceSheetAmountRemainingForCurrentFiscalYear	152
Total Unconditional PurchaseObligationBalanceSheetAmountOneYearAfterFiscalYearEnd	762
Total Unconditional Purchase Obligation Balance Sheet Amount Two Years After Fiscal Year End	838
TotalUnconditionalPurchaseObligationBalanceSheetAmountThreeYearsAfterFiscalYearEnd	764
TotalUnconditionalPurchaseObligationBalanceSheetAmountFourYearsAfterFiscalYearEnd	999
Total Unconditional Purchase Obligation Balance Sheet Amount Five Years After Fiscal Year End	202
TotalUnconditionalPurchaseObligationBalanceSheetAmountThereafter	$ 2,495
Minimum
Long-term Purchase Commitment [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	2 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	$ 2,064
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	55
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	383
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	487
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	491
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	365
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	83
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	200
Marketing [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	667
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	32
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	155
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	148
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	142
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	116
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	44
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	30
Senior Notes Interest [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	849
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	7
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	34
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	2
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	8
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	6
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	5
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	8
Other Unrecorded Purchase Obligations [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	151
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	7
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	69
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	67
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	6
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	131
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	1
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	13
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	10
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	7
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	8
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	8
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	84
Recorded Total	365
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	16
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	77
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	61
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	52
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	44
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	29
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	86
Transition And Other Taxes [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	24
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	5
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	2
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	7
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	7
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