Consolidated Statements of Changes in Partnership Capital Subject to Mandatory Redemption - USD ($) $ in Millions	Total	Limited Partnership Capital [Member]	Subordinated Limited Partnership Capital [Member]	General Partnership Capital [Member]
TOTAL PARTNERSHIP CAPITAL SUBJECT TO MANDATORY REDEMPTION at Dec. 31, 2020	$ 3,589	$ 1,362	$ 594	$ 1,633
Reserve for anticipated withdrawals at Dec. 31, 2020	(514)	(125)	(56)	(333)
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals at Dec. 31, 2020	3,075	1,237	538	1,300
Partnership loans outstanding at beginning of year at Dec. 31, 2020	341	0	1	340
Total partnership capital, including capital financed with partnership loans, net of reserve for anticipated withdrawals at Dec. 31, 2020	3,416	1,237	539	1,640
Issuance of partnership interests	274	3	60	211
Redemption of partnership interests	(71)	(5)	(16)	(50)
Income allocated to partners	380	49	46	285
Distributions	(3)	0	0	(3)
Total partnership capital, including capital financed with partnership loans at Mar. 26, 2021	3,996	1,284	629	2,083
Partnership loans outstanding at end of period at Mar. 26, 2021	438	0	0	438
TOTAL PARTNERSHIP CAPITAL SUBJECT TO MANDATORY REDEMPTION at Mar. 26, 2021	3,558	1,284	629	1,645
Reserve for anticipated withdrawals at Mar. 26, 2021	(337)	(49)	(46)	(242)
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals at Mar. 26, 2021	3,221	1,235	583	1,403
TOTAL PARTNERSHIP CAPITAL SUBJECT TO MANDATORY REDEMPTION at Dec. 31, 2021	3,755	1,361	640	1,754
Reserve for anticipated withdrawals at Dec. 31, 2021	(520)	(136)	(59)	(325)
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals at Dec. 31, 2021	3,235	1,225	581	1,429
Partnership loans outstanding at beginning of year at Dec. 31, 2021	321	0	0	321
Total partnership capital, including capital financed with partnership loans, net of reserve for anticipated withdrawals at Dec. 31, 2021	3,556	1,225	581	1,750
Issuance of partnership interests	320	4	52	264
Redemption of partnership interests	(60)	(5)	(17)	(38)
Income allocated to partners	361	43	43	275
Distributions	(13)	(1)	0	(12)
Total partnership capital, including capital financed with partnership loans at Mar. 25, 2022	4,164	1,266	659	2,239
Partnership loans outstanding at end of period at Mar. 25, 2022	425	0	0	425
TOTAL PARTNERSHIP CAPITAL SUBJECT TO MANDATORY REDEMPTION at Mar. 25, 2022	3,739	1,266	659	1,814
Reserve for anticipated withdrawals at Mar. 25, 2022	(310)	(42)	(43)	(225)
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals at Mar. 25, 2022	$ 3,429	$ 1,224	$ 616	$ 1,589