Acquisitions and Divestitures - Miller Divestiture (Details) £ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Mar. 01, 2021 USD ($)	Mar. 01, 2021 GBP (£)
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Tax exempt gain on sale	$ 43	$ (59)	$ 2,679
Miller [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Final total consideration received from sale of subsidiary				$ 818	£ 623
Miller [Member] | Other Income, Net [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Tax exempt gain on sale			$ 356