Debt Obligations and Commitments (Narrative) (Details) R in Billions	Dec. 31, 2022 USD ($)	Dec. 25, 2021 USD ($)	May 28, 2021 USD ($)	Dec. 26, 2020 USD ($)	Dec. 26, 2020 ZAR (R)
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 0
Debt Instrument, Repurchase Amount		$ 4,800,000,000
International Divisions
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	$ 304,000,000	38,000,000
Two Point One Five Percent Notes Due 2020 [Member] | Note Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount				$ 1,100,000,000
Interest rate on debt				2.15%	2.15%
Debt Instrument, Repurchased Face Amount				$ 1,100,000,000
Interest Rate Swap [Member] | Note Due 2020 [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount				800,000,000
Interest Rate Swap [Member] | Note Due October 2021
Debt Instrument [Line Items]
Derivative, Notional Amount		250,000,000
One Point Seven Percent Notes Due October 2021 | Note Due October 2021
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount		$ 750,000,000
Interest rate on debt		1.70%
Debt Instrument, Repurchased Face Amount		$ 750,000,000
Three Point Nine Percent Notes Due 2032 | Notes Due 2032
Debt Instrument [Line Items]
Interest rate on debt	3.90%
Debt Instrument, Face Amount	$ 1,250,000,000
Two Point Two Five Percent Notes Due 2022 | Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount	$ 750,000,000
Interest rate on debt	2.25%
Debt Instrument, Repurchased Face Amount	$ 750,000,000
Three Point Ten Percent Notes Due 2022 | Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount	$ 800,000,000
Interest rate on debt	3.10%
Debt Instrument, Repurchased Face Amount	$ 800,000,000
Seven Percent Notes Due 2029 and Five Point Five Percent Notes Due 2035 [Member] | Notes Due 2029 And 2035
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount	154,000,000
Debt Instrument, Repurchased Face Amount	133,000,000
Multi Tranche Notes Due 2023-2026 | Defeasance of Long Term Debt
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount	102,000,000
Debt Instrument, Face Amount	$ 94,000,000
Seven Percent Notes Due 2029 | Notes Due 2029
Debt Instrument [Line Items]
Interest rate on debt	7.00%
Five Point Five Percent Notes Due 2035 | Notes Due 2035 [Member]
Debt Instrument [Line Items]
Interest rate on debt	5.50%	5.50%
Three Point Three Seven Five Percent To Five Point Five Percent Notes Due 2035 to 2060. | Notes Due 2035 To 2060
Debt Instrument [Line Items]
Debt Instrument, Repurchased Face Amount		$ 4,100,000,000
Three Point Three Seven Five Percent Notes Due 2049 [Member] | Notes Due 2049 [Member]
Debt Instrument [Line Items]
Interest rate on debt		3.375%
Pioneer Bridge Loan Facilities [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity				$ 1,300,000,000	R 21.7
Five Year Unsecured Revolving Credit Agreement
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 3,800,000,000		$ 3,750,000,000
Line of Credit Swing Line Subfacility	750,000,000
Line of Credit Facility, Maximum Borrowing Capacity	4,500,000,000
364 Day Unsecured Revolving Credity Agreement Member
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	3,800,000,000		$ 3,750,000,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 4,500,000,000