Consolidated Statements of Changes in Partnership Capital Subject to Mandatory Redemption (Unaudited) - USD ($) $ in Millions	Total	Limited Partnership Capital [Member]	Profits Interests [Member]	Subordinated Limited Partnership Capital [Member]	General Partnership Capital [Member]
Reserve for anticipated withdrawals at Dec. 31, 2023	$ (578)	$ (170)	$ 0	$ (60)	$ (348)
TOTAL PARTNERSHIP CAPITAL SUBJECT TO MANDATORY REDEMPTION at Dec. 31, 2023	4,627	1,920	0	726	1,981
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals at Dec. 31, 2023	4,049	1,750	0	666	1,633
Partnership loans outstanding at Dec. 31, 2023	(439)	0	0	0	(439)
Total partnership capital, including capital financed with partnership loans, net of reserve for anticipated withdrawals at Dec. 31, 2023	4,488	1,750	0	666	2,072
Issuance of partnership interests	337	6	0	64	267
Redemption of partnership interests	(64)	(7)	0	(11)	(46)
Net income allocations	467	74	10	52	331
Other Comprehensive Loss Allocations	(3)	(1)	0	0	(2)
Distributions	(21)	4	0	0	(25)
Total partnership capital, including capital financed with partnership loans, and profits interests at Mar. 29, 2024	5,204	1,826	10	771	2,597
Partnership loans outstanding at Mar. 29, 2024	(594)	0	0	0	(594)
Reserve for anticipated withdrawals at Mar. 29, 2024	(398)	(77)	(10)	(52)	(259)
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals at Mar. 29, 2024	4,212	1,749	0	719	1,744
TOTAL PARTNERSHIP CAPITAL AND PROFITS INTERESTS SUBJECT TO MANDATORY REDEMPTION at Mar. 29, 2024	4,610	1,826	10	771	2,003
TOTAL PARTNERSHIP CAPITAL AND PROFITS INTERESTS SUBJECT TO MANDATORY REDEMPTION at Dec. 31, 2024	4,909	1,926	14	794	2,175
Reserve for anticipated withdrawals at Dec. 31, 2024	(708)	(199)	(14)	(73)	(422)
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals at Dec. 31, 2024	4,201	1,727	0	721	1,753
Partnership loans outstanding at Dec. 31, 2024	(473)	0	0	0	(473)
Total partnership capital, including capital financed with partnership loans, net of reserve for anticipated withdrawals at Dec. 31, 2024	4,674	1,727	0	721	2,226
Issuance of partnership interests	372	14	0	56	302
Redemption of partnership interests	(66)	(7)	0	(17)	(42)
Net income allocations	513	71	17	56	369
Other Comprehensive Loss Allocations	(5)	0	0	(1)	(4)
Distributions	(8)	15	0	0	(23)
Total partnership capital, including capital financed with partnership loans, and profits interests at Mar. 28, 2025	5,480	1,820	17	815	2,828
Partnership loans outstanding at Mar. 28, 2025	(625)	0	0	0	(625)
Reserve for anticipated withdrawals at Mar. 28, 2025	(449)	(86)	(17)	(55)	(291)
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals at Mar. 28, 2025	4,406	1,734	0	760	1,912
TOTAL PARTNERSHIP CAPITAL AND PROFITS INTERESTS SUBJECT TO MANDATORY REDEMPTION at Mar. 28, 2025	$ 4,855	$ 1,820	$ 17	$ 815	$ 2,203