Net Investment Hedge, Threshold Percentage of the Equity Balance

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Payments for Derivative Settlement

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Face (par) amount of debt instrument at time of issuance.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount of increase in the fair value of derivatives recognized in the income statement.

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Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer.

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Amount before tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Derivatives (Details) £ in Billions		1 Months Ended	3 Months Ended	12 Months Ended
Derivatives (Details) £ in Billions	Sep. 20, 2018 GBP (£)	Jan. 31, 2019 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2019 USD ($)	Mar. 31, 2019 EUR (€)
Derivative [Line Items]
Decrease in net investment hedges				$ 100,000,000
Purchase consideration (GBP)				$ 1,400,000,000	$ 877,000,000
FX Contract
Derivative [Line Items]
Gain on derivative					31,000,000
Treasury Lock
Derivative [Line Items]
Charge to settle derivative contract		$ 122,000,000	$ 6,000,000
JLT Transaction
Derivative [Line Items]
Purchase consideration (GBP) \| £	£ 5.2
JLT Transaction \| FX Contract
Derivative [Line Items]
Loss due to change in fair value of derivative					26,000,000
JLT Transaction \| Treasury Lock
Derivative [Line Items]
Derivative hedge, asset							$ 2,000,000,000
Senior Notes
Derivative [Line Items]
Debt instrument, face amount		$ 5,000,000,000
Senior Notes \| JLT Transaction
Derivative [Line Items]
Debt instrument, face amount \| €						€ 1,100,000,000		€ 1,100,000,000
Net investment hedge, threshold percentage of the equity balance				80.00%
Charge to settle derivative contract					$ 7,300,000