CONSOLIDATED STATEMENTS OF OPERATING RESULTS (Parenthetical) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Profit or loss [abstract]
Depreciation and amortisation expense	$ 2,036	$ 1,705	$ 1,214

The amount of depreciation and amortisation expense. Depreciation and amortisation are the systematic allocations of depreciable amounts of assets over their useful lives.

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