CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (PARENTHETICAL) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Statement of Cash Flows [Abstract]
Cash Acquired from Acquisition		$ 43
Supplemental disclosures of cash flow information:
Interest paid	$ 85	80
Income taxes paid (received), net of refunds	185	(12)
Transfer of invested assets	1,557	0
Assets disposed, net of cash transferred	(512)	0
Liabilities disposed	$ (504)	$ 0