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Commitments, Contingencies and Debt - Debt Narrative (Details) € in Millions, $ in Millions	1 Months Ended				3 Months Ended		9 Months Ended
	Jun. 30, 2023 EUR (€)	Aug. 27, 2022 USD ($)	Jun. 25, 2022 USD ($)	Mar. 26, 2022 USD ($)	Sep. 24, 2022 USD ($)	Jun. 25, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 24, 2022 USD ($)	Jun. 30, 2023 USD ($)	May 09, 2023 EUR (€)	Dec. 31, 2022 USD ($)	Jul. 08, 2022 USD ($)
Debt Instrument [Line Items]
Repayments of long-term debt							$ 823	$ 1,157
Gain (Loss) on Extinguishment of Debt							0	12
Debt prepayment and extinguishment costs							0	17
Fair value of total debt							18,000				$ 18,700
Carrying value of total debt							$ 19,900				$ 20,100
Construction in progress									$ 400
Lessee, lease term									5 years
Construction in progress, residual value guarantee, percentage									0.85
2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt								12
Write off of deferred debt issuance costs								1
Q2 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt						$ 9
Debt prepayment and extinguishment costs								17
Write off of unamortized debt premiums								30
Q3 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt					$ 3
Senior Notes \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 448
Senior Notes \| Q2 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased						$ 268
Senior Notes \| Q3 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased					$ 180
Senior Notes \| Senior Notes due May 2025
Debt Instrument [Line Items]
Outstanding aggregate principal amount \| €										€ 600
Senior Notes \| Senior Notes Due June 2023
Debt Instrument [Line Items]
Repayments of long-term debt \| €	€ 750
Senior Notes \| Senior Notes Due February 2040
Debt Instrument [Line Items]
Interest rate					6.50%			6.50%
Senior Notes \| Senior Notes Due February 2040 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 133
Senior Notes \| Senior Notes Due July 2045
Debt Instrument [Line Items]
Interest rate					5.20%			5.20%
Senior Notes \| Senior Notes Due July 2045 \| Q2 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 70
Senior Notes \| Senior Notes Due August 2039
Debt Instrument [Line Items]
Interest rate					7.125%			7.125%
Senior Notes \| Senior Notes Due August 2039 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 63
Senior Notes \| Senior Notes Due June 2042
Debt Instrument [Line Items]
Interest rate					5.00%			5.00%
Senior Notes \| Senior Notes Due June 2042 \| Q2 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 61
Senior Notes \| Senior Notes Due October 2049
Debt Instrument [Line Items]
Interest rate					4.875%			4.875%
Senior Notes \| Senior Notes Due October 2049 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 34
Senior Notes \| Senior Notes Due July 2035
Debt Instrument [Line Items]
Interest rate					5.00%			5.00%
Senior Notes \| Senior Notes Due July 2035 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 29
Senior Notes \| Senior Notes Due January 2039
Debt Instrument [Line Items]
Interest rate					6.875%			6.875%
Senior Notes \| Senior Notes Due January 2039 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 29
Senior Notes \| Senior Notes Due July 2028
Debt Instrument [Line Items]
Interest rate					6.375%			6.375%
Senior Notes \| Senior Notes Due July 2028 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 14
Senior Notes \| Senior Notes Due June 2050
Debt Instrument [Line Items]
Interest rate					5.50%			5.50%
Senior Notes \| Senior Notes Due June 2050 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 9
Senior Notes \| Senior Notes Due October 2039
Debt Instrument [Line Items]
Interest rate					4.625%			4.625%
Senior Notes \| Senior Notes Due October 2039 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 4
Senior Notes \| Senior Notes Due January 2029
Debt Instrument [Line Items]
Interest rate					4.625%			4.625%
Senior Notes \| Senior Notes Due January 2029 \| 2022 Repurchases, Senior Notes
Debt Instrument [Line Items]
Amount repurchased								$ 2
Senior Notes \| Senior Notes Due August 2022
Debt Instrument [Line Items]
Repayments of long-term debt		$ 315
Senior Notes \| Senior Notes Due June 2022
Debt Instrument [Line Items]
Repayments of long-term debt			$ 381
Senior Notes \| Senior notes due in March 2022
Debt Instrument [Line Items]
Repayments of long-term debt				$ 6
Senior unsecured revolving credit facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity												$ 4,000