BORROWINGS - Composition of borrowings (Details) - GBP (£) £ in Millions	Jun. 30, 2023	Dec. 31, 2022
Borrowings
Current	£ (1,097)	£ (437)
Non-current	(8,768)	(10,003)
Total borrowings	(9,865)	(10,440)
Commercial paper
Borrowings
Current	(463)	(302)
Total borrowings	(463)	(302)
Commercial paper \| Euro
Borrowings
Nominal value	2,000
Commercial paper \| USD
Borrowings
Nominal value	10,000
Loan and overdrafts
Borrowings
Current	(40)	(91)
Total borrowings	(40)	(91)
Lease liabilities
Borrowings
Current	(41)	(44)
Non-current	(105)	(117)
Total borrowings	(146)	(161)
Non-voting preference shares
Borrowings
Non-current	(25)	(25)
Total borrowings	(25)	(25)
Bonds
Borrowings
Current	(553)
Non-current	(8,638)	(9,861)
Total borrowings	£ (9,191)	£ (9,861)

The amount of outstanding funds that the entity is obligated to repay.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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